A.
Many people think that he is one of the most ambitious politicians of our times. 很多人认为他是现今最有野心的政客之一。
B.
Although he is very young, he is very ambitious in his research work. 他虽然很年轻,但是在研究工作中很有雄心壮志。
C.
They incited him to go into further investigation. 他们煽动他做进一步的调查。
D.
These are among the most sophisticated weapons in the world. 这些属于世界上最尖端的武器。