Pentanitrol
四硝基季戊四醇
🗣️ 情景例句
Mary, what's your favorite sport?
玛丽，你最喜欢什么运动？
Avarice increases with wealth.
越富越贪。
Everybody here is busy getting ready for it and buying Christmas presents.
这里的每一个人都在忙于为圣诞节做准备和忙于购买圣诞节礼物。