1.
As all developers (and their managers) understand, messing with existing code can be a ticklish proposition.
正如所有的开发人员(包括管理者)都知道，修改原有的程序代码是一件棘手的事。
2.
It's a tough/not an easy proposition.
这是一件棘手的[不好办的]事.
3.
Let us join in that tender office.
让我们一同来参加这件棘手的事吧。
4.
Collecting bad debts is often a difficult affair.
收呆帐往往是件棘手的事。
5.
When others interfere in the affair, it always makes troubles.
他人一插手，棘手的事情就来了。
6.
The issue of abortion has been a hot potato in America for a long time.
很长时间以来，人工流产在美国一直是一件很棘手的事。
7.
someone other than the principals who are involved in a transaction.
帮助本人处理一些棘手的事务的人。
8.
awkward business
麻烦的事情，棘手的事情
9.
The chief set me a difficult task.
上司派给我一件棘手的工作。
10.
I am well aware that this is a tough job.
我深知这是一件棘手的工作。
11.
It was then a hard nut to crack.
在那时是一桩很棘手的事。
12.
- This is difficult one but we're going to prevail - Alright, alright
- 这件事儿很棘手，但是我们会成功的，好的，好的
13.
I thought it was a nut for me to crack, but he explained the situation in a nutshell.
我认为这是件棘手的事，但他概括地说明了情况。
14.
With that thorny issue out of the way the rest followed easily.
这个棘手的问题一经解决，其余的事就好办了。
15.
Nancy Pelosi, the worryingly left-leaning representative from San Francisco who is likely to be speaker, will have a tough job keeping control (see article).
旧金山烦恼地左倾的代表南茜伯罗斯很可能是议长，已经将一个棘手的事件保持控制（见文章）。
16.
'He told me that he was travelling on business of a delicate and difficult nature, which might get people into trouble, and that he was therefore travelling under an assumed name.
“他告诉我他在为一件很微妙、很棘手、很可能给别人带来灾祸的事奔走，因此旅行时使用了假名。
17.
The thing filled me with despair.
这件事实在使人感到棘手。
18.
This is an exasperating problem.
这是一个棘手的难题。