Chrysofluorene
[化] 柯芴; 11-H-苯并[α]芴
🗣️ 情景例句
If negotiaton fails, then what?
万一谈判破裂，怎么办？
What on earth has happened to trouble you so?
到底发生什么事让您如此发愁？
The first thing I saw when I entered the art gallery was a notice which said:
走进展厅首先看到的是一张告示，上面写着