Often it's a salt called phosphocholine and so you get a phospholipid that's made of choline and two lipid chains.

它通常是一种叫磷酸胆碱的盐,这样你就得到了一种,由胆碱和两条脂肪链构成的磷脂

耶鲁公开课 - 生物医学工程探索课程节选

But you probably should use often because hey, who doesn't get frustrated?

但你也许该多多运用它，因为毕竟，谁不会感到沮丧呢？

I'm frustrated 课堂 - SpeakingMax英语口语达人

Whenever your church would get a copy of one of these letters from Paul,you would have scribes,often slaves, because slaves were especially trained to be scribes.

当一个教会得到保罗书信的一份副本时,你就要让抄写员，他们通常是奴隶，因为奴隶被专门训练成为抄写员。

耶鲁公开课 - 新约课程节选

Run and gunning here will often get you nowhere, and do nothing but draw the ire of your teammates.

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They fight and clash and sometimes you still get a great movie ( consider Apocalypse Now) but often you get an embarrassing mess on the screen.

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Not very often you get a game as glamorous as Ohio State and Texas.

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