in a mess in a mess /in ə mes/ 乱糟糟；零乱，肮脏，陷于窘境；凌乱无序 Your room is in a mess, please tidy it up. 你的房间那么乱，收拾一下吧。 a mess 只是一个名词,在使用时一般要加 be 动词. in a mess 是个介词短语 I've made such a mess of my life. 我把自己的生活弄得一团糟。 no messing (informal) 毫不费力;不费吹灰之力;轻而易举 used to say that sth has been done easily We finished in time, no messing. 我们不费吹灰之力，就按时完成了。