有理由的

Their complaints are well-founded.

他们抱怨是有理由。

We are justly proud of our new achievement.

我们有充分理由我们新成就感到骄傲。

Jack has nothing to say. He must have a suasive song and dance next time.

杰克无言以对。下次，还得找个有说理由。

But others, who find Quine's arguments unpersuasive, hold that analytical philosophy has virtues quite sufficient to ensure it a role as a central philosophical method for the foreseeable future.

但是其他一些人发现奎因主张并没有说，坚持分析哲学有相当充分理由可预知未来一种核心哲学方法提供担保。

Given the distance between my previous role as a convention gate-crasher and my newfound role as convention keynoter, I had some cause to worry that my appearance in Boston might not go very well.

我在上届大会角色是擅闯会场者，而这届大会是主要发言人，由于这两个角色巨大差距，我有一定理由担心，我在波士顿登场也许不会十分成功。