Doliolaria
桶形幼虫, 海参形幼虫
🗣️ 情景例句
Will you be so kind as to help me out of the difficulty?
帮助我克服困难，好吗？
May I use your telephone?
我可以用你的电话吗？
I want to take a walk along the river bank, singing my favorite songs.
我想在河边散步，唱我喜欢的歌。