barrier
n.
屏障;障礙物 an object like a fence that prevents people from moving forward from one place to another
障礙;阻力;關(guān)卡 a problem, rule or situation that prevents sb from doing sth, or that makes sth impossible
分界線;隔閡;障礙 sth that exists between one thing or person and another and keeps them separate
難以逾越的數(shù)量或水平 a particular amount , level or number which it is difficult to get past
同義詞
n. roadblock
參考例句
1. Green barrier is nowadays trade obstacle that enterprises have to face in international trade.
綠色壁壘是當(dāng)今國際貿(mào)易中企業(yè)不得不面對的貿(mào)易障礙
2. Using the curving characteristic at the normal temperature, designs the more perfect sound barrier.
利用常溫下可自然彎曲的特性，設(shè)計(jì)出更加完美的聲屏障
3. Although the UML defines a precise language, it is not a barrier to future improvements in modeling concepts.
盡管UML定義一種精確的語言，它不是到在建模概念的未來改進(jìn)的一個(gè)障礙
參考例句
1.N-COUNT A barrier is something such as a rule, law, or policy that makes it difficult or impossible for something to happen or be achieved. 障礙
例：Duties and taxes are the most obvious barrier to free trade.
關(guān)稅及其他各種稅是自由貿(mào)易最明顯的障礙
2.N-COUNT A barrier is a problem that prevents two people or groups from agreeing, communicating, or working with each other. 障礙; 隔閡
例：There is no reason why love shouldnt cross the age barrier.
愛情沒有理由不應(yīng)跨越年齡障礙
例：She had been waiting for Simon to break down the barrier between them.
她一直在等著西蒙來破除他們之間的隔閡
3.N-COUNT A barrier is something such as a fence or wall that is put in place to prevent people from moving easily from one area to another. 柵欄; 圍墻
例：The demonstrators broke through heavy police barriers.
示威者們沖破了警方的重重關(guān)卡
4.N-COUNT A barrier is an object or layer that physically prevents something from moving from one place to another. 屏障
例：A severe storm destroyed a natural barrier between the house and the lake.
一場猛烈的暴風(fēng)雨摧毀了房屋和湖泊之間的天然屏障
5.N-SING You can refer to a particular number or amount as a barrier when you think it is significant, because it is difficult or unusual to go above it. 大關(guān)
例：They are fearful that unemployment will soon break the barrier of three million.
他們擔(dān)心失業(yè)人數(shù)不久將突破300萬大關(guān)
常見用法
用作名詞
The ice skater rammed into the barrier.
溜冰者撞到護(hù)欄上了
Heavy duties on imports and exports are a barrier to international trade.
進(jìn)出口的高關(guān)稅是國際貿(mào)易的障礙
The Sahara Desert is a natural barrier between north and central Africa.
撒哈拉沙漠是北非與中非之間的天然屏障
n.
屏障;障礙物 an object like a fence that prevents people from moving forward from one place to another
障礙;阻力;關(guān)卡 a problem, rule or situation that prevents sb from doing sth, or that makes sth impossible
分界線;隔閡;障礙 sth that exists between one thing or person and another and keeps them separate
難以逾越的數(shù)量或水平 a particular amount , level or number which it is difficult to get past
同義詞
n. roadblock
參考例句
1. Green barrier is nowadays trade obstacle that enterprises have to face in international trade.
綠色壁壘是當(dāng)今國際貿(mào)易中企業(yè)不得不面對的貿(mào)易障礙
2. Using the curving characteristic at the normal temperature, designs the more perfect sound barrier.
利用常溫下可自然彎曲的特性，設(shè)計(jì)出更加完美的聲屏障
3. Although the UML defines a precise language, it is not a barrier to future improvements in modeling concepts.
盡管UML定義一種精確的語言，它不是到在建模概念的未來改進(jìn)的一個(gè)障礙
參考例句
1.N-COUNT A barrier is something such as a rule, law, or policy that makes it difficult or impossible for something to happen or be achieved. 障礙
例：Duties and taxes are the most obvious barrier to free trade.
關(guān)稅及其他各種稅是自由貿(mào)易最明顯的障礙
2.N-COUNT A barrier is a problem that prevents two people or groups from agreeing, communicating, or working with each other. 障礙; 隔閡
例：There is no reason why love shouldnt cross the age barrier.
愛情沒有理由不應(yīng)跨越年齡障礙
例：She had been waiting for Simon to break down the barrier between them.
她一直在等著西蒙來破除他們之間的隔閡
3.N-COUNT A barrier is something such as a fence or wall that is put in place to prevent people from moving easily from one area to another. 柵欄; 圍墻
例：The demonstrators broke through heavy police barriers.
示威者們沖破了警方的重重關(guān)卡
4.N-COUNT A barrier is an object or layer that physically prevents something from moving from one place to another. 屏障
例：A severe storm destroyed a natural barrier between the house and the lake.
一場猛烈的暴風(fēng)雨摧毀了房屋和湖泊之間的天然屏障
5.N-SING You can refer to a particular number or amount as a barrier when you think it is significant, because it is difficult or unusual to go above it. 大關(guān)
例：They are fearful that unemployment will soon break the barrier of three million.
他們擔(dān)心失業(yè)人數(shù)不久將突破300萬大關(guān)
常見用法
用作名詞
The ice skater rammed into the barrier.
溜冰者撞到護(hù)欄上了
Heavy duties on imports and exports are a barrier to international trade.
進(jìn)出口的高關(guān)稅是國際貿(mào)易的障礙
The Sahara Desert is a natural barrier between north and central Africa.
撒哈拉沙漠是北非與中非之間的天然屏障
