出其不意

The police surprised the thief into confessing.

警察出其地使小偷招认了。

I was surprised by the abrupt change of subject.

出其变换题目让我很吃惊。

Look, you whiney crybaby, we're not wasting the element of surprise to mollify your nyctophobia.

听，个瞎抱怨爱哭鬼，我们可会为了迁就黑夜恐惧症而浪出其一要素。

This is a very quick and surprisingly effective way to limit your opponent's economy and is especially effective against the turtler because they honestly won't be expecting it.

是个限制敌人经济非常迅速而又出其有效方式，而在对抗龟派时尤其有效，因为它们通常会想到。