Definition (行動)
to take something unlawfully
偷竊；行竊
He knocked off some electronics from the store as if stealing them without a care.
他從店裡偷了一些電子產品，好像毫不在意地行竊。
The police are investigating a recent case where one suspect is believed to have knocked off several items.
警方正在調查最近的一起案件，據信一名嫌疑人偷走了幾件物品。
The thief knocked off the wallet from her bag with remarkable speed.
小偷以驚人的速度從她的包裡偷走了錢包。
to accomplish something swiftly and effortlessly
迅速完成
She managed to knock off the task in no time, which was quite impressive.
她很快就完成了任務，這讓人印象深刻。
He knocked off the first draft of the report in just five minutes this morning.
他今天早上只花了五分鐘就完成了報告的第一稿。
We knocked off the project in just a few hours.
我們只花了幾個小時就完成了這個項目。