岂不的英文：
certainly
definitely

参考例句：

You prescribe brandy for them, and I'll end up with a wardroom of closet drunks
你替他们开白兰地的方子，结果我的军官室里岂不都挤满了醉鬼了吗？

How shall not the ministration of the spirit be rather glorious?
何况那属灵的职事，岂不更有荣光吗？

How shall not the ministration of the spirit be rather in glory?
属神的职务，岂不更该有光荣吗？

If we complacently accept something, do nothing about it, is it as good as condoning it?
如果我们毫不质疑的接受一些错误的看法，岂不等于纵容和助长这些观点？

certainly是什么意思：
adv. 无疑的，肯定的；当然，行

You are certainly a profiteer.
你真是个奸商。

That ring is certainly the cheese.
那只戒指无疑是精品。

You are certainly a talented artist.
你当然是位有天赋的艺术家。

Carol is certainly a social climber.
卡罗尔确实是一个想往上爬的人。

These desperadoes will certainly be punished by the law.
这些亡命之徒必将受到法律的惩罚。

definitely是什么意思：
adv. 明确地；确切地；一定地；肯定地
int. 当然

This definition is circular.
这个定义是循环论证的。

The article lacks definition or definite content.
缺乏确定性或者明确的内容。

As officials of the town, this was definitely their business.
他们既然是这个城镇的官员，这当然是他们的职责所在。

By definition, this way of life is parasitic.
从其含义来说，这是种寄生虫的生活方式。

Save the collection definition
保存收集定义