by contraries

1. 与预期的相反

It seems that many things in our lives go by contraries.

我们生活中似乎有许多事与愿违的情况。

contrary to

1. 与……相反

What you are doing now is contrary to the doctor's advice.

你正在做与医嘱相反的事。

on the contrary

1. 正相反

You're quite free now, I think. On the contrary, I have tons of things to do!

我想你现在一定很空。正相反, 我有一大堆事要做!

quite the contrary

1. 恰恰相反

-- Did he pass the examination?

-- 他通过考试了吗?

to the contrary

1. (意思)相反的

We knew nothing to the contrary.

当时我们不知道任何相反的情况。