They applied two coats of paint to the wall.

他们在墙上涂了两层漆。

Apply your principles to your action.

实行你的原则。

to apply penalty

科罚。

to apply a rule

援用原则。

He applied his mind to business.

他专心于事业。

He does not apply his mind to his lessens.

他对功课不专心。

He applied himself closely to the study of English.

他专心研究英文。

Apply to the address given above.

向上述的地址申请。

to apply to a friend for information

向友人探问消息。

This does not apply to you.

这与你无关。

the rule applies to all cases

这条例适用于一切案件。