基础结构会使用指数倒退演算法，根据计算出来的平均来回时间决定何时重新传输。

The infrastructure USES an exponential back-off algorithm to determine when to retransmit, based on a computed average round-trip time.

youdao

第一次尝试重新传输的时间会根据计算出来的来回时间调整，这些尝试所花费的时间也会因此而有所不同。

The time for the first retransmission attempt is adjusted according to the calculated round-trip time and the resulting stretch of time that those attempts take varies accordingly.

youdao

白天只有这么多时间用来回信。

There is only so much time in the day for answering letters.

《柯林斯英汉双解大词典》

A mule is not spending 1/2 of its time as a donkey, and 1/2 of its time as a horse, we don't see it flickering back and forth between the two, that's not what we see.

骡子并不是一半的时间是驴，另一半的时间是马，我们不会看到它在两者之间来回变化，这不是我们所看到的情况。

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