Alloclasite
[化] 雜硫鉍砷鈷礦
??? 情景例句
I did , but everything is OK,so I decided to come back.
回去了， 但一切安好。于是我決定回來。
I dropped the letter in the mailbox on the corner.
我把信放到角落上的郵箱里。
The train was traveling at 120 miles an hour.
火車時速一百二十英里。