Selenazolobenzothiazole
硒唑并苯并噻唑
🗣️ 情景例句
How many brothers and sistes do you have?
你有多少个兄弟姐妹？
Drop me a line.
写封信给我
Mentally, at least, most of us could compile formidable lists of 'dos' and 'don'ts'.
至少在大多数人的心里会编排出一份“应做什么”和“不应做什么”的令人生畏的单子。