blow the whistle
“blow the whistle”所表达的意思是“告发、揭发”，人们把揭发者称为“whistle blower”。
1.He was dismissed when he tried to blow the whistle on the safety problems at the factory.
2.She didn't mean to blow the whistle on him.
3.When he discovered his boss was taking bribes, he blew the whistle and wrote his congressman about it.
4.Last week, Mary finally blew the whistle on him and the company investigated him and decided to fire the man.
as clean as whistle
短语“as clean as whistle”所表达的意思是“事物极其干净或某人没有任何前科或污点”。关于它的来源有很多种，有人认为它源于人们吹奏芦苇或木制哨子时所发出的清脆声音。
1.He may come across as someone who could’ve been involved in that robbery, but I have checked his records and they’re as clean as a whistle.
2.Lily always keeps her desk as clean as whistle.
3.I’ve never even been issued a speeding ticket – my driving licence is clean as a whistle.
4.Jen is a bit of a neat freak. She keeps her desk clean as a whistle.
5.You’ve really tidied it up here – it’s as clean as a whistle!
whistle for it
短语“whistle for it”意为“休想得到、痴心妄想”，一起来看几个例句吧！
1.You can whistle for it as much as you like, this is an heirloom of our family and will stay with us!
2.I owe my butcher 10, but he can whistle for it.
3.If he wants the book by the end of this week he will have to whistle for it ; I can' t finish it until next weekend.
whistle in the wind
短语“whistle in the wind”所表达的意思是“白费口舌”。
You ask him to give up is like a whistle in the wind.
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