From five o'clock to eight is on certain occasions a little eternity.

从五点到八点这段短短的时间，有时仿佛永无尽头似的。

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Maybe you just need to be holding your position at certain moments on certain occasions.

也许你只须在特定的时刻特定的场合坚守你的岗位。

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There are occasions when you will want to ignore certain signals.

在有些情形下，您需要忽略某些信号。

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There are occasions when you will want to ignore certain signals.

在有些情形下，您需要忽略某些信号。

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