1.a."Could you help me with this?" "No problem."
b."Thank you!" / "Oh sorry"! -" No problem."

2."go by"
a. As time went by, 表示时光流逝或者经过。
b. "My name is xxx（Chinese name）, and I go by xxx（English name）."
我的名字是...，你也可以叫我...。
My name is Catherine, and I go by Cat.
我叫Catherine，你也可以叫我Cat。

3."appreciate it" ＝ (Thank you very much./Thanks a lot.)

4.a. "How are you?" -"I'm good. "
b. Do you want some chips with your sandwich?
你的三明治要带薯片吗？
No, I'm good. Thanks.
不用了。谢谢。


5.kind of… = nearly, approximately, almost, somewhat 模糊或者减弱语气的作用
I'm kind of lost.
我有点儿迷路了。

6."You lost me."
a."You've lost me forever, Edward."
你永远失去我了，Edward。
b."I'm sorry, you've lost me; could you explain it again? "
不好意思，你有点儿把我搞糊涂了，你能再解释一遍吗？

7.给出建议：
You might wanna/you don't wanna/Don't you wanna..：for suggest somebody to do or not to do something
建议某人做或不做某事。
Don't you wanna call her in the middle of the night?
建议去做
You don't wanna call her in the middle of the night.
You don't know how grumpy she could be
不建议做