Pentanitrol
四硝基季戊四醇
🗣️ 情景例句
I'm glad Mr. Marchetta was so helpful.
我真高兴 ，Marchetta先生如此帮忙。
Friendship is love with understanding.
友谊是爱加上谅解。
I will be back by the end of next month.
我下个月底会回来。