Batteries in laptops and mobile phones are engineered to be discharged over the course of several hours or days, and they only need to last a couple of years.

在笔记本电脑和移动电话中的电池被设计成可在数小时或数天过程中连续使用，且它们只需有数年寿命。

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B: Yeah, in a couple of days I have to decide who I'll be going out with for the next five years or so.

乙：是啊，过两天我就得决定往下五年跟谁交往了。

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Chinese custom dictates that a couple in this situation should marry within 100 days of the father's death, or wait three years.

中国习俗要求，如果在这种情况下结婚的夫妇，应该在父亲死亡后的一百天内，否则就要等待三年。

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"In the old days--a couple of years ago--we would have built this before we tested it, " says RC2 Chief Executive Curtis W. Stoelting.

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Exxon actually produces more natural gas than oil these days, having jumped into the domestic gas frenzy in a big way a couple of years ago.

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