Extender
[计] 扩展器, 延长器, 扩充部件\\n[化] 补充剂; 填料
🗣️ 情景例句
Good for you.
我真为你高兴。
Keep your mouth shut and your eyes open.
要多看少说。
I waited till he came near, then I asked him the way to our old village.
等他走近了，问他去老家的路。