Blastulation
囊胚形成
🗣️ 情景例句
I think you, rather than Jim, are to blame.
我认为该受责备的是你，而不是吉姆。
True coral needs no painter's brush.
真珊瑚无需刷油漆。
Over the years, one may well become a authority on one's hobby and will very probably be asked to give informal talks to little gatherings and then,
一人积了多年经验会成为自己这种爱好的权威，很可能应邀在小型集会上作非正式的讲话。