Difluoromethane
[化] 二氟甲烷
🗣️ 情景例句
A murder occurred last night in this very district.
就在这个区昨晚发生了一起凶杀案。
The poor are rich when they are satisfied.
贫能知足即为富。
like adolescents they stand before the mirror,
犹如希腊神话中那位漂亮少年，