Litholine
石油
🗣️ 情景例句
We are going upstairs to set up Grandpa's room.
我们要上楼收拾一下爷爷的房间。
She must be a model, isn't she?
她一定是个模特，不是吗？
We really need that material, you know.
你知道，我们急着需要那批材料。