A: Well, then what? Every suggestion I make, you tear to pieces. At least throw me a bone here! It’s not helpful for you to just shoot down my ideas!
B: Well, I don’t know what to get him either.What do you buy for the man who has everything?
A: Oh, you’re a great help! Your optimism beginning to get on my nerves. I’m beat. Maybe we should just call it a day.

A : 怎么？我提出的每一个建议你都不接受，至少留些口德吧！你否认我的想法对你自己一点好处也没有！
B : 好吧，但是我也不知道要给他送什么。你给这个拥有一切的人买什么？
A : 唉，你帮倒忙了！你的乐观开始让我神经紧张心烦意乱。我觉得非常地疲惫！也许我们今天该到此为止了。

1. tear to pieces：撕碎，痛斥
The prosecutor would tear your testimony to pieces. 
检查官会把你的证言驳得体无完肤。 
If you tear the paper into four pieces, we can each have something to write on. 
如果你把这张纸撕成四份，我们大家就都有纸可写了。 

2. throw someone a bone：给人表面上的小恩小惠

3. shoot down：击落，否认，辩驳
例句：The soldiers were ordered to shoot down all escaping prisoners. 
战士们被命令击毙所有的逃犯。 
The worker shoot down the manager's idea of shorter vacation. 
工人们驳倒了经理缩短假期的主意。 
At the meeting Smith made some feeble objection to my plan which I was able to shoot down in flames with no trouble. 
在那次会议上，史密斯对我的计划颇有微词，对此我毫不费事地进行了严厉谴责。 

4. get on one's  nerves：让某人心烦
Children get on their parent's nerves by asking so many questions 
孩子们提这么多问题，使他们的父母心烦。 
Generally, boys get on their mothers' nerves more than girls because they are running around, and girls are more willing to help their mothers.

5. beat：筋疲力尽的，疲惫不堪的

6. call it a day：收工
Well, I think it is time to call it a day. 
恩，我想该是下班的时间了。 
Time is up. Let's call it a day. 
时间到。放学！ 
I feel washed out. Let's call it a day. 
我觉得疲乏了。今天就干到这里吧。