pin down

US /pɪn daʊn/

UK /pɪn daʊn/

确定, 查明

to understand or describe something exactly

•

It's hard to pin down the exact cause of the problem.

很难确定问题的确切原因。

•

I can't quite pin down what's bothering me.

我无法完全确定是什么困扰着我。

制服, 困住

to make someone stay in a particular place or prevent them from moving

•

The police managed to pin down the suspect in the alley.

警方设法在小巷里制服了嫌疑人。

•

The heavy rain pinned us down in the cabin for hours.

大雨把我们困在小屋里好几个小时。