if

AHD:[¹f]

D.J.[if]

K.K.[!f]

conj.（连接词）

In the event that:

如果，倘若：在…的情况下：

If I were to go, I would be late.

倘若我去，就要迟到

Granting that:

假设，如果：

If that is true, what should we do?

假设那是真的我们该怎么办呢?

On the condition that:

如果，只要：在某种条件下：

She will play the piano only if she is paid.

只有付给她报酬，她才愿意演奏钢琴

Although possibly; even though:

虽然；即使：

It is a handsome if useless trinket.

虽然无用却很漂亮的小饰物

Whether:

是否：

Ask if he plans to come to the meeting.

问问他是否要来参加会议

Used to introduce an exclamatory clause, indicating a wish:

但愿，要是…该多好啊：用来引出一个表达愿望的感叹句，表达一个愿望：

If they had only come earlier!

如果他们早来一步该多好啊!

n.（名词）

A possibility, condition, or stipulation:

条件：可能性、条件或设想：

There will be no ifs, ands, or buts in this matter.

这件事不允许有假设、拖延或反对