Sign extender
[计] 符号扩展器
🧩 词语组成解析
[计] 扩展器, 延长器, 扩充部件\\n[化] 补充剂; 填料
🗣️ 情景例句
Well, he's here with his daughter to have lunch.
嗯， 他和他女儿已到这里等吃午餐了。
Have you invited any girls?
你邀请女孩吗？
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。