1. It has always seemed to me that she was the wrong shape for a heavenly messenger.
    我总觉得，她的模样似乎不像是上帝的信使。

2. Is cloning morally wrong and dangerous — or is it a valuable research tool?
    克隆是违背或危害道德的——还是一种有价值的研究手段？

3. It is usually the ordinary street officer who is on the wrong end of this, rather than the armed experts who arrive rather later.
    通常，正是在街上巡逻的普通警察因此遭殃，而不是姗姗来迟的武装特警。

4. First, they tried to understand what was wrong with the process (the treatment of heart patients after surgery).
    首先，他们试图弄明白这个疗程（对术后心脏病人的治疗）有何不妥。