Knacked
(knack 的过去时) n. 熟练技术, 巧妙手法, 诀窍\\n[化] 窍门
🗣️ 情景例句
I'm thirty.
我三十岁。
Soon learnt, soon forgotten.
学得快，忘得快。
Thank you .It was very nice of you to help me.
谢谢你帮我，你真好。