1. When you see this letter, we have just made a difficult decision. Before Qihoo360 stops infringing upon and slandering QQ, we have decided to stop running QQ on computers installed with 360's software.
当您看到这封信的时候，我们刚刚作出了一个非常艰难的决定。在360公司停止对QQ进行外挂侵犯和恶意诋毁之前，我们决定将在装有360软件的电脑上停止运行QQ软件。

2. In an effort to protect the validity of GRE scores, ETS has made the difficult decision to cancel all scores resulting from the Oct.23, 2010 GRE administration in China.
为确保GRE考试成绩的效力，ETS艰难地决定取消所有参加2010年10月23日中国大陆地区GRE普通考试的考生成绩。

3. I've decided to quit my job, this is really a tough decision.
我已经决定辞职了，做这个决定挺难的。

4. The city council has to make the tough call and decide whether to cut education or tourism budgets.
市议会要做出艰难抉择，决定到底要削减教育预算还是旅游预算。

5. We've had a hard time making this decision, sorry, you are fired.
做出这个决定让我们很受煎熬，很抱歉，你被解雇了。

6. TV fans may have tough choices in new season.
新剧季到来，电视迷们可能要难做取舍了。