Without enough blood, you can't cool off.

如果血容量不足，人体便无法冷下来。

youdao

Move around inside enough to get the blood flowing without breaking a sweat.

在室内充分活动，在不流汗的情况下让血液流动起来。

youdao

Move around inside enough to get the blood flowing without breaking a sweat.

在室内充分活动，在不流汗的情况下让血液流动起来。

youdao