one by one they leave
他们一个接一个地离开了
以上为机器翻译结果，长、整句建议使用 人工翻译 。
They watch wistfully as their friends leave one by one, to cross the bridge with their special person.
它们是如此忧愁的注视着它们的朋友一个个地离开，跨越这桥，和他们心爱的人。
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One shopkeeper says most of the goods he sells are leftover rations dumped by American military units when they leave the country.
NPR: Kabul's Bush Bazaar
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