Underwound
欠旋（沿右手螺旋相反方向捻动）
🗣️ 情景例句
That's a practicable course of action.
那是一个切合实际的行动方案。
We must make it clear from the very beginning that competitive quotations are acceptable.
必须一开始就讲清的是，有竞争力的报价可以接受。
In this way, he was able to solve the mystery.
就这样，他解开了起火之谜。