We can't keep up with our work.

我们跟不上我们的工作。

He can't keep up with the rhythm of this song.

他跟不上这首歌的律动。

Sarah can't keep up with him.

莎拉不能跟上他。

Slow down, Carl. I can't keep up with you.

卡尔，走慢一点。我跟不上你。

So, it can happen quickly if reproduction rates can't keep up with mortality rates.

所以，如果繁殖率跟不上死亡率，这就会很快发生。

You could lose your house if you can't keep up with your mortgage payments.

如果你因为失去收入而无法还贷，那么你可能会失去你的房子。

In severe cases, the kidneys can't keep up with the resulting volumes of dilute urine.

严重的情况下肾脏会无法负荷大量被稀释的尿液。