Ethylbiscoumacetate
双香豆乙酸乙酯(抗凝血药)
🗣️ 情景例句
Yes?
是吗？
Everything has its time and that time must be watched.
任何事情都有好的时机，不要随意放过。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
100年前，我们只知道海洋是二维平面形的，以及靠近陆地浅水区的深浅不一能给航行带来危险。