Diffusant
扩散剂
🗣️ 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。
First, I would like to express to all of you here our sincere welcome.
首先，我向在坐的诸位表示诚挚的欢迎。
Putting my hand on her face, she spelled l-a-u-g-h.
她将我的手在她的面部，就拼写l-a-u-g-h。