释义：
adv. 当然；行（用于回答）；必定
例句：
Certainly, I'll bring you my book.
当然，我给你带上我的书。
Without his mother's support, his plan would certainly fail.
没有母亲的支持，他的计划肯定会失败。
释义：
adv. 当然；行（用于回答）；必定
例句：
Certainly, I'll bring you my book.
当然，我给你带上我的书。
Without his mother's support, his plan would certainly fail.
没有母亲的支持，他的计划肯定会失败。
