Some pulsars keep time better than the earth's most accurate clocks.

某些脉冲星发送脉冲比地球上最精确的时钟都准时。

柯林斯例句

We have to order stock carefully to keep time with seasonal demands.

我们必须仔细地订购货物以便满足季节的需要.

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The kids in the band didn't keep time with the conductor.

乐队的孩子们不能同指挥合拍.

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Many musicians keep time by tapping their feet on the ground.

一些音乐家用脚在地板上打着节拍唱歌.

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This cultural relic is a copper water - clock that was used to keep time in ancient times.

这件文物是古代用来计时的铜壶.

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