Polysulfide
[化] 多硫化物\\n[医] 多硫化物
🗣️ 情景例句
Not at all. Hope you come again.
不客气。希望你能再来。
Just a second. I'll have to check.
等一等。我得查一查。
Look at this letter from Wang Wei to her penfriend in Australia.
请看这封王伟写给她在澳大利亚的笔友的信。