Chemiadsorption
化学吸附
🗣️ 情景例句
How long will this be on sale?
这种商品减价时间有多久？
What's your plan for the summer holiday?
暑假计划干什么？
A great many goods were sent to the exhibition from various parts of the world.
大量的商品从世界各地运送到了博览会，