conj.

1. （表示條件）如果
   He will come if you invite him.

   如果你請他，他會來的。

2. （表示假設）假如，要是
   If I were you, I would never do that.

   如果我是你，我絕不做那件事。

3. （表示讓步）即使
   We'll go even if it rains.

   即使下雨我們也要去。

4. 是否
   I wonder if she is ill.

   不知她是否病了。

5. （表示因果關係）每一次……的時候（總是會）
   If I feel any doubt, I inquire.

   我一感到有疑問就隨時詢問。

n.

1. 條件；設想[C]
   There are too many ifs in his offer.

   他的提議中條件太多了。

conj.

1. introducing a conditional clause:
   ▸on the condition or supposition that.
   ▸(with past tense) introducing a hypothetical situation.
   ▸every time.
2. despite the possibility that.
   ▸despite being.
3. whether.
4. expressing a polite request or tentative opinion.
5. expressing surprise or regret.

n.