He can 't do without (the services of) a secretary.

他不能没有秘书(的协助)。

youdao

We can do nothing and can "t even live on without money."

没有钱，我们无法办事，甚至不能生活下去。

youdao

Lo-and-behold,you can't do anything without a WWW.Nothing,".

VOA: standard.2010.01.05

He's a better teacher than Scotus or Aquinas, and the text seems almost to suggest that Milton can't do without his own teacher, Edmund Spenser.

他是一位比苏格拉底和阿奎那更好的良师，这些文章几乎暗示了弥尔顿,没有老师埃蒙德·斯潘塞则不能做到弃绝那些诱惑。

耶鲁公开课 - 弥尔顿课程节选

In other words, in a certain sense you can't do without it.

换句话说，在某种意义上，不这样做是不行的。

耶鲁公开课 - 文学理论导论课程节选

Ain't it true, there's just no doubt, there's some things that you can't do without.

NPR: The '80s Strike Back: Devo's Mark Mothersbaugh

Both are not only regular but heavy Internet users, who couldn't do their jobs without it, and both have long since forgotten their dismissal of the medium they now can't do without.

FORBES: The Addictive Internet

And it's an extra that the phone's data-hungry users can't do without.

FORBES: iPhone Fans Score