Tectosome
构造体; 构造相层
🗣️ 情景例句
She is giving me piano lessons in exchange for her English classes.
我教她英语，她教我弹钢琴。
We can spend hours talking about computers.
我们可以花些时间一起聊聊电脑。
What's the point of going to college?
上大学有何用？