G469
[医] β-吡啶醛缩氨硫脲
🗣️ 情景例句
Maybe you can photogragh a class,
也许你来拍一次上课的情形，
Who wrote that composition?
那个作品是谁写的？
Beware of methylated alcohol, which is very poisonous,
要提防甲基化酒精，那是剧毒的，