Dinitroresorcinol
二硝基间苯二酚
🗣️ 情景例句
Have you ever been there?
你去过那儿吗？
I really appreciate your help.
我非常感谢你的帮助。
There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation.
长期以来，海员中流传着一种迷信的说法，认为海豚会把快要淹死的人托到水面，救人性命；或在人们周围列队保护，使他们免遭鲨鱼伤害。