Rackwork
齿条, 齿条加工, 齿条机构
🗣️ 情景例句
Don't waste your breath trying to persuade them, they'll never listen.
别白费口舌规劝他们，他们不会听你的话。
No matter where you go you'll meet nice people.
无论你到哪里，你总会遇到好人。
The trainer stands in front of the elephant holding a long stick with a sharp metal point.
驯练员手持一根有锋利金属尖头的长棒，站在象前。