boo

1. V-T/V-I If you boo a speaker or performer, you shout "boo" or make other loud sounds to indicate that you do not like them, their opinions, or their performance. 发出嘘声 (以示不满)

People were booing and throwing things at them. 人们发出嘘声，并朝他们扔东西。

Demonstrators booed and jeered him. 示威者发出嘘声嘲笑他。

2. N-COUNT Boo is also a noun. 嘘声

She was greeted with boos and hisses. 迎接她的是一片喝倒彩的嘘声。

3. booingN-UNCOUNT 发出嘘声

The fans are entitled to their opinion but booing doesn't help anyone. 狂热爱好者们有权表达自己的看法，但发出嘘声对任何人都没有好处。

4. INTERJ You say "Boo!" loudly and suddenly when you want to surprise someone who does not know that you are there. 为吓唬人而发出的声音