talk down to someone 用一種瞧不起人,羞辱人的態度講話

talk down to someone

to speak to someone in a patronizing manner; to speak to someone in the simplest way. The manager insulted everyone in the office by talking down to them. Please don't talk down to me. I can understand anything you have to say.

a fly on the wall 偷偷觀察

a fly on the wall

if you say you would like to be a fly on the wall in a certain situation, you mean that you would like to be there secretly to see and hear what happens I'd give anything to be a fly on the wall when she tells him.

hit it off 很快變成朋友

hit it off (with someone)

Fig. to quickly become good friends with someone. Look how John hit it off with Mary. Yes, they really hit it off.

a chip off the old block 同一個模子印出來的, 樣子一模一樣

a chip off the old block

if someone is a chip off the old block, they are very similar in character to one of their parents or to another older member of their family (not used with the ) Look at her bossing everyone around - she's a real chip off the old block!

the old guard 保守的老員工

the old guard

a group of people who have worked in an organization for a long time and do not want it to change She has tried to resist attempts by the old guard to halt the reform process.

among other things 除此之外

Usually, the phrase is used in the middle of a sentence to link two thoughts together. Another word one could use instead of the phrase would be, "also". For instance, " my grandson is a great basketball player, among other things, he is a nice guy. (or) My grandson is a great basketball player, also, he is a nice guy. At the end of a sentence, it leaves the listener to his own imagination," My grandson is a great basketball player, among other things. 

have an eye for someone or something 愛好

have an eye for someone or something

Fig. to have a taste or an inclination for someone or something. Bob has an eye for beauty. He has an eye for color.

a big shot / wheel 重要的人物

a big shot/wheel  (American & Australian informal)

an important or powerful person in a group or organization Mr Madison is a big shot in the world of finance.

cut the tension with a knife 非常緊張

The tension in the room was so thick one could almost cut it with a knife. Meaning the people in the room were so tense that the emotion almost had a physical presence.

clean up/clean out/clean off

clean up=clean out
 "Clean up" is certainly used to refer to stains. "Clean off" certainly refers to clearing things away, as from a table, etc. "Clean up" also refers to cleaning up rooms, language, behavior etc. "Clean off" generally refers to physical things. Here are some examples:

Johnny, clean up your room! It's really messy in here.
You'd better clean up your act. You've been drinking too much lately.
I'll have to clean up my language if I want to impress her.
I cleaned off the wall that had been spattered with blood.
I cleaned the blood off the wall.

in one sitting 一口氣做完不間斷

at/in one sitting

if you do something at one sitting, you do it during one period of time without stopping I read the whole book in one sitting.

fall off the wagon 故態復萌

fall off the wagon

to start drinking alcohol again, especially too much alcohol, after a period when you have not drunk any Six months later he fell off the wagon in spectacular fashion with a three-day drinking spree.

in all honesty/seriousness/truthfulness 老實說, 認真說

in all honesty/seriousness/truthfulness

 said when expressing your opinion honestly, seriously, or truthfully:In all honesty, I do have some criticisms to make.