to make something or someone completely wet

The grass had been saturated by overnight rain. 一夜的雨淋透了草地。

He had cut his leg badly, and his trousers were saturated with/in blood. 他划破了腿，伤势严重，裤子都被血浸透了。

to fill a thing or place completely so that no more can be added

The police saturated (= a large number of police officers were sent into) the area. 大批警察被派往该地区。

to provide too much of a product so that there is more of this product available than there are people who want to buy it

Since the US market has now been saturated, drug dealers are looking to Europe. 由于美国的市场现在已经饱和，毒贩们开始转向欧洲。

Don't you think that the cosmetics market is saturated by now?

The top end of the market is saturated with luxury personal goods, but there is still a need for luxury services.

There are no opportunities now because the fast food market is saturated.

There have simply been too many hybrid car models that have saturated the market.

a saturated fat specialized