🧩 词语组成解析
n. 马丁, 圣马丁鸟
n. 渐变群, 生态群
🗣️ 情景例句
I like to listen to the music and to play piano and occasionally to go swimming.
我喜欢听音乐、弹钢琴，有时候去游泳。
What are friends for?
朋友是做什么用的？
But of course, he can learn by himself. He has a book and a dictionary.
但当然，他也可以自学。他有书和词典。