trouble词根：troub=tur=turb =stir,表示"带来麻烦，使浑浊,不清楚"
troub 表示搅动,混乱+le表示反复动作
1、trouble名词：困难、问题 （不可数名词）
① have trouble with sth. 某方面有困难
The police have trouble with the hard case。
警察在这个棘手的案子上遇到了麻烦。
② have trouble doing sth. 做某事有麻烦
Ole people aii have trouble taking care of themselves.
老人家在照顾自己这方面都很困难。
③ the trouble is +句子 问题是……
The trouble is he cannot finnish the work before tomorrow.
问题是他明天之前完成不了工作。
④ get into trouble 陷入麻烦
Look，that man is getting into trouble，we should go and help him.
看，那个男人陷入麻烦了，我们应该去帮帮他。
⑤ get out of trouble 走出麻烦
I got out of trouble quickly with his heip.
在他的帮助之下，我快速的走出了困境。
2、trouble动词 使困扰：打扰
① trouble sb.困扰某人
The stomachache troubles him deeply，he can hardly fall asleep.
胃疼深深的困扰着他，他几乎不能睡觉。
② trouble sb.打扰某人，意思等同于disturb
I am so sorry to trouble you last night，just because the case is very important.
昨晚打扰你真的很不好意思，主要是方案真的太重要了。
3、troublesome 形容词：棘手的
trouble 烦恼+some表形容词→adj.麻烦的, 讨厌的, 棘手的
The boss did not give us enough infrastructure or budget，the case is too troublesome.
老板没有给足够的信息和预算，这个方案太难实施了。
4、 trouble 常用搭配
① ask for trouble 自找麻烦
② look for trouble 惹是生非
③ run into trouble 陷入困境
④ stay out of trouble 避免陷入困境
⑤ stomach trouble 胃病
⑥ sign of trouble 问题的征兆