Phylembryogenetical
胚胎系统发育的
🗣️ 情景例句
No, I don't have any hobbies. How about you?
没有，我没有任何的爱好，你呢？
His visit was well timed.
他的访问正合时宜。
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。