嘻嘻，老师还真勤劳，我们51休息，老师，您也休息一下好了~～～～～

go by
Well, if you go by the forecast that I heard, you shouldn't put your coat and hat away quite yet.
如果你按照我听到的天气预报行事，你还远没到把外套和帽子收起来的时候。
＝act according to, judge by 根据。。。行事，依据。。。判断

go to one's head
A: Have you noticed how John's changed since he became student government president?
甲；你注意到没有？John当了学生会主席后变了。
B: I think the whole thing's gone to his head, and he used to be so sociable and open.
乙：他从前那么友善和开朗，我看他被这事冲昏了头脑。
＝make a person think he is too important 使自负

has a way with
What do you think of that letter John sent us about the woman?
你觉得John寄给我们的关于那位女士的信写得怎么样？
It was fascinating. He really has a way with words.
妙极了。他可真擅长辞令。
＝擅长

have had it
I've had it with being sick in bed.
我受够了病卧在床的滋味。
I have had it. Everybody is accusing me of this, but there isn't any evidence.
我受够了。个个都指责我，却没有一丝证据。
＝to have endured all that one can 受够了

hit it off
A: Our little brothers are so different I was afraid they wouldn't like each other at first.
甲：我弟弟们太特别了，刚开始我还担心他们合不来呢。
B: They really hit it off right away, didn’t they?
乙：他们马上就玩到一起去了，是吧？
＝to get along well together 合得来

老师辛苦～～～～请喝茶

hit the ceiling
My boss will hit the ceiling if I ask to change again.
我要是再要求变更，老板会大发雷霆的。
＝勃然大怒（字面义：砸天花板）

砸天花板？是用鞋子砸还是用杯子砸？我认为最原始的意思是说气得不停地跳动，自己个人的安全已经无法顾及，只是一门心思地发泄怒气，所以以至于连头都磕碰到天花板了...和hit the roof意思一样。