mess around 【非正式用语】

To pass time in aimless puttering.

虚度光阴

To associate casually or playfully

随便交往或厮混

liked to mess around with pals on days off.

喜欢休息日与朋友们厮混

mess up

&I{Informal} To make a mistake, especially from nervousness or confusion

【非正式用语】 犯错误，尤指因紧张或混乱而致

messed up and dropped the ball.

慌慌张张把球掉了

&I{Slang} To beat up; manhandle

&I{【俚语】} 狠揍；粗暴地对待

got messed up in a brawl.

在吵闹中打斗起来

mess with someone's head

(US informal)cause someone to feel frustrated, anxious, or upset

(美，非正式)使泄气；使担忧；使苦恼

mess about/around

behave in a silly or playful way, especially so as to cause irritation

胡闹，瞎闹

mess about/around with

interfere with

干预，干涉

the minister messed around with health, and look at the state we are in.

部长插手了卫生工作，看看我们如今的状况。

mess someone about/around

(Brit. informal)cause someone inconvenience or problems, especially by acting unfairly or indecisively

(英，非正式)给…制造麻烦

mess someone up

(informal)cause someone emotional or psychological problems

(非正式)使情绪（或心理）不安

I was unhappy and really messed up.

我不开心，情绪极差。

mess something up

(informal)cause something to be spoiled by inept handling

(非正式)把（事情）弄糟

an error like that could easily mess up an entire day's work.

那样的错误会使一整天工作轻易付诸东流。

mess with

(informal)meddle or interfere with so as to spoil or cause trouble

(非正式)干涉；干预

stop messing with things you don't understand.

别再管你不懂的事了。