【迷你小对话1】

A: The victory was decisive in winning the war.
B: If they had lost, I believe the war would have carried on for another two years.

A: 这次胜利对最终赢得战争至关重要。
B: 他们要是败了，我相信战争还得再持续两年。

【迷你小对话2】

A: His mark in English will be the determining factor of whether he goes to Yale or not.
B: I know that they have very strict requirements.

A: 他能不能去耶鲁大学，就看他的英语成绩。
B: 我知道他们的要求极为苛刻。

【语言点精讲】

decisive: 决定性的；需要做出抉择的；关键的。
carry on: 继续，坚持。
determining: 决定的。
mark: （学校）分数。