人人都会偶尔咳嗽，但如果你似乎比以前更频繁地染上咳嗽，或者咳嗽延续很长时间或变成了慢性咳嗽，就是和你的医生谈谈的时候了。
Everyone gets a cough once in awhile, but if you seem to be getting them more frequently, or they linger for a long time or become chronic, it's time to talk to your doctor.
同样地，有些帐篷可以延续很长时间，而其它的帐篷很快坍塌成碎片。
Likewise, some tents last for a long time whereas others fall to pieces rapidly.
安吉丽娜·茱莉最近在接受BBC采访时表示：“我不准备让我的演绎事业延续很长时间。”
Angelina Jolie recently had an interview with the BBC and said, "I don't plan to keep acting very long."
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