Defeasible

I think you're going to be very happy here with us.

我想你和我们住在一起会很愉快的。

I do not know whether you realize it, but this condition is essential to us.

我不知道你是否了解，但是，这个条件对我们是必要的。

I'm afraid I can't agree with you. That's a good way of giving information, but it's not a good way of persuading people. For one thing, it's boring, and people aren't going to read an ad that looks boring. For another thing, one computer looks very like

恐怕我不能同意你的意见。那是个通报信息的好办法，但并非是使人信服的好办法。一是它很乏味，人们是不会去读一则看起来很乏味的广告的。其次，计算机彼此都很相像。人们不会记住产品的名字的。