Rackwork
齿条, 齿条加工, 齿条机构
🗣️ 情景例句
looking for a small house or an apartment
找一个小住宅或公寓
Wonders are many, and nothing is more wonderful than man.
奇迹很多，但没有一件东西比人更为奇妙。
Is it urgent?
急吗？