因此在第二秒内，速度没变。

So during the second second, the velocity is not changing.

youdao

录制音频的第一第二秒可能非常响亮。

First second of recorded audio may be very loud.

youdao

在第二秒，从+ 3移动到，又移动了6米。

Then in the second second -3 it goes from plus three to minus three so it travels another six meters.

youdao

In fact, he broke the 4 minutes and 10 seconds mark, 4 minutes and 5 seconds mark and he got 4 minutes and 2 seconds and stopped, like everyone else-- could not go below the 4 minutes and 2 seconds.

他突破了四分十秒，四分五秒,跑到四分两秒时停止，像所有人一样-,无法低于四分二秒。

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