1. Why is there the threat of global warming?
    为什么会有全球变暖的威胁？

2. The robbers enforced obedience to their demand by threat of violence.
    匪徒以暴力威胁使受害者服从他们的要求。

3. The student is under the threat of expulsion from the university.
    这名学生面临被逐出大学的危险。

4. The value of age and experience is denied, and women in particular feel the threat that the visible changes of ageing bring.
    年龄和经验的价值被否定了。女性尤其感受到因衰老而致的外在改变所带来的威胁。

5. Actually the biggest threat to the traditional image and role of police officers does not come from guns and armed crime but the increase in the tasks we expect the police to carry out.
    实际上，对传统警察形象、职责的最大威胁并非来自枪支和武装犯罪，而是来自我们要求警察做的日益增多的工作。

6. It seems less of a threat than I´d expected.
    威胁性似比我预料的要小.