HSK 4 · verb
敲
to knock; to strike; to knock out
有人在轻轻敲门。
Yǒu rén zài qīngqīng qiāo mén.
Somebody is knocking gently at the door.
这次失败给我们敲响了警钟。
Zhè cì shībài gěi wǒmen qiāo xiǎngle jǐngzhōng。
This failure sounded a warning bell for us.
他因为敲诈别人被抓了。
Tā yīnwèi qiāozhà biérén bèi zhuāle。
He was caught for extorting others.
他反复推敲，才写下这几个字。
Tā fǎnfù tuīqiāo， cái xiě xià zhè jǐ gè zì。
He deliberated again and again before writing down these few characters.