Permutit ethods
[医] 人造浮石法(检尿氨)
🧩 词语组成解析
[机] 人造沸石
🗣️ 情景例句
And don't forget your camera and film, Richard.
别忘了你的照相机和底片， Richard。
He always takes pride in his work.He's very efficient.
他总是以他的工作而自豪，他是非常能干的。
What's the point of going to college?
上大学有何用？