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
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
He should see the doctor.
他应该去看医生。
That's worthwhile.
那是值得的。