/wɒt; US hwɒt ||; hwɑt/det pronoun1 used for asking for information about sb/sth （用于发问或询问）: What time is it? 现在几点了？What kind of music do you like? 你喜欢哪一类音乐？She asked him what he was doing. 她问他在做什么。What's their phone number? 他们的电话号码是多少？
Look at the note at which. 参看which的注释。 2 the thing or things that have been mentioned or said 所指或所说的事物: What he says is true. 他说的是真的。I haven't got much, but you can borrow what money I have. 我的钱不多，但我有的可以全部借给你。
3 used for emphasizing sth （用于强调）: What strange eyes she's got! 她的眼睛真奇怪呀！What a kind thing to do! 多么好心的一件事啊！
4 used to express surprise or to tell sb to say or repeat sth （用于表示惊讶或让人重复某话）: ‘I've asked Alice to marry me.’ ‘What!’ “我请艾丽斯嫁给我。”“什么！”
how/what about...?→
ABOUT²
what for for what purpose or reason 为什么目的；做什么用:
What's this little switch for? 这个小开关有什么用？What did you say that for (= why did you say that)? 你干吗说那些话？ what if...? what would happen if...? 如果…怎么办？:
What if the car breaks down? 如果汽车抛锚了怎么办？