Phosphonate
膦酸盐, 膦酸酯
🗣️ 情景例句
The kids hang their stockings over the fireplace for Santa Claus to fill them with candies and toys.
孩子们在火炉边悬挂长筒袜等待圣诞老人给他们塞糖果和玩具。
How do you do.
你好。
My treat.
我请客。