to prevent someone or something from entering a place or taking part in an activity

Women are still excluded from the club. 这家俱乐部仍然把女性拒之门外。

Microbes must, as far as possible, be excluded from the room during an operation. 在手术过程中，要尽可能防止细菌进入手术室。

Tom has been excluded from school (= he is not allowed to go to school) for bad behaviour. 汤姆因为行为不端被学校开除了。

to intentionally not include something

The price excludes local taxes. 这个价格不包括地方税。

to decide that something is not true or possible

We can't exclude the possibility that he is dead. 我们不能排除他已经死亡的可能性。