Help:
be on call:随时可用,随时到
例:I'm on call.我随叫随到。
Who's on call tonight?今晚谁值班?
Physicians who were on call for48 hours.48小时随叫随到的医生们
come up with: 提出,想出
例:He's come up with a great idea. 他想出了一个绝好的办法。
The scientists are beating their brains trying to come up with a solution to the problem.科学家正绞尽脑汁,力求找到解决这个问题的办法。
inborn:天生的,生来的,生成的
enlarge one's horizons: 使某人眼界开阔
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2016-02-29
2016-02-29
2016-02-29
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2016-02-29