Hexamethylamine
六甲铵
🗣️ 情景例句
Give it a try.
试试看。
Better be the head of an ass than the tail of a horse.
宁为驴头，不为马尾。
Today, enough soundings are available to enable a relief map of the Atlantic to be drawn
现在已有足够的水深测量数据来绘制一张大西洋洋底地形图，