🧩 词语组成解析
a. 被子的
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
🗣️ 情景例句
Biology and mathematics.
生物学和数学。
I heard you'd been sick.
听说你身体不舒服。
Haven't you heard of him? He's a very famous singer. He's singing at the New Theatre on Saturday.
你没听说过他吗？他是个著名歌手。他星期六将在新剧院演出。