To do CPR, you press on the sick person's chest so that blood moves through the body and takes oxygen to organs.

做心肺复苏时，你要按压病人的胸部，使血液在体内流通，将氧气输送到各个器官。

It is no use operating on the sick man.

给这个病人做手术已经没用了。

We must attend on the sick who have a fever.

我们必须照料那些发烧的病人。

Her loud voice rasped on the sick man's nerves.

她那高嗓门刺激著病人的神经。

These three microbial species perch more on the sick leaves than on the healthy leaves.

在叶片内生微生物中，以细菌数量最多，真菌次之，放线菌最少。