ask for trouble

(informal)act in a way that is likely to incur problems or difficulties

(非正式)自找麻烦，自讨苦吃

hitching a lift is asking for trouble.

想免费搭便车是自找麻烦。

look for trouble

(informal)behave in a way that is likely to provoke an argument or fight

(非正式)惹是生非

youths take a cocktail of drink and drugs before going out to look for trouble.

酒和毒品混用过以后，这群年轻人就出去惹是生非了。

trouble and strife

(Brit. rhyming slang)wife

(英, 谐俚)妻子

a trouble shared is a trouble halved

(proverb)talking to someone else about one's problems helps to alleviate them

(谚)苦恼让人知晓，负担一半减少