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(1) 障礙(物)，屏障 (thing that is put up or built to prevent or control progress or movement)[C]：be on different sides of a high～處于一很高的障礙物的兩邊;put up～s to keep back the crowd設(shè)置障礙以擋住人群;show one's ticket at the～在柵欄口出示票;(horse) leap over the wooden～(馬)躍過(guò)木障;The English channel was a～against Nazi ground forces.英吉利海峽曾是擋住納粹陸軍的屏障。Deserts/Mountains are a～to the movement of people.沙漠/大山是人們行動(dòng)的障礙。～cream護(hù)膚膏;〖同〗obstacle，bar，block;〖反〗entrance，opening，passage;

(2) 障(阻)礙 (sth that causes difficulty) [C] (fig)：Poor health/Lack of money may be a～to educational progress. 身體不好/缺錢會(huì)是提高教育水平的障礙。Not knowing a foreign language may be a～to enjoying travel abroad.不懂外語(yǔ)會(huì)是享受出國(guó)旅行樂(lè)趣的障礙。Lack of education can be a～to success/progress. 受教育不夠可能成為成功/進(jìn)步的障礙。Pollution is a～to future economic growth.污染是影響未來(lái)經(jīng)濟(jì)發(fā)展的障礙。find one's deafness a～to promotion 發(fā)現(xiàn)自己耳聾成了提升的障礙;The bitterness of their quarrel caused a～between the former friends. 不愉快的爭(zhēng)吵使兩個(gè)老朋友間產(chǎn)生了隔閡。trade～s against imported goods 進(jìn)口貿(mào)易壁壘;〖同〗obstacle;〖反〗aid，help，advantage;

(3) 隔閡(離)物 (thing that keeps people apart)[C]：～s of race/religion種族/宗教隔閡;the language～語(yǔ)言隔閡;break down the old～s between the two parties 打破兩黨間以往形成的隔閡;

【辨異】barrier與bar和barricade的區(qū)別見(jiàn)BAR。