Invaginate planula
[醫] 原腸胚
?? 詞語組成解析
v. 收進鞘中
n. [動]浮浪幼體
??? 情景例句
and good-bye.
再見。
Money is a good servant but a bad master.
要做金錢的主人，莫作金錢的奴隸。
Yes, please do that.
好，那就麻煩你了。