knock at

音标：[nɒk æt] (英式发音) 或 [nɑːk æt] (美式发音)

翻译：敲响，敲打，敲门

读音：knock（/nɒk/ 或 /nɑːk/） at（/æt/）

解释：短语“knock at”表示敲门、敲打或敲击某物，通常是指向某个地方或某个目标敲门或敲击，来寻求注意或进入某地。

用法：

"knock at" 通常用于描述敲击门、窗等的动作，表示请求进入或引起注意。

有时也可以用于比喻意义，表示接近某个目标或达到某个状态。

例句：

I heard someone knock at the door last night.
昨晚我听到有人敲门。

She knocked at the door but no one answered.
她敲了敲门，但是没有人回应。

The children knocked at the door to ask for candy.
孩子们敲门索要糖果。

I knocked at the window, trying to get his attention.
我敲了敲窗户，试图引起他的注意。

When I knocked at the door, he was already inside.
当我敲门时，他已经在里面了。

I knocked at the door softly because it was late at night.
因为已经很晚了，我轻轻敲了敲门。

The police officer knocked at the suspect's door in the early morning.
警察在清晨敲响了嫌疑人的门。

A man knocked at my office door asking for directions.
一个男人敲了我的办公室门，问路。

Don't forget to knock at the door before entering.
进入之前别忘了敲门。

I will knock at the door when I arrive at your house.
我到你家时会敲门。

短语搭配：

knock at the door - 敲门

knock at the window - 敲窗户

knock at the gate - 敲门（通常指大门或入口）

knock at someone's door - 去找某人，敲某人的门

knock at the threshold - 接近某个界限或目标