doubtful怎么读?doubtful是什么意思?

doubtful怎么读?

英 [ˈdaʊtfl] 美 [ˈdaʊtfl]

doubtful是什么意思?

adj.可疑的;怀疑;拿不定主意;不确定;未必;难说;不大可能;不明朗;悬而未定;可能变糟;低劣的

派生词：doubtfully adv.

例句：

1.It's doubtful whether the car will last another year.

这辆汽车未必还能用上一年。

2.At the beginning of the war things were looking very doubtful.

战争刚开始时，形势看上去很不明朗。

3.It's doubtful whether there'll be any seats left.

看来未必还有座位。

4.He is injured and is doubtful for the game tomorrow.

他受了伤，明天未必能参赛。