Blood pressure usually falls during the sleep cycle.

血压通常在睡眠周期中降低。

youdao

Koalas usually sleep during the day, but get up and eat leaves at night.

考拉通常白天睡觉，但晚上却起来吃叶子。

youdao

Koalas usually sleep during the day, but get up and eat leaves at night.

考拉通常白天睡觉，但晚上却起来吃叶子。

youdao