Squelette
翼形中线(弧线), 剖面中线
🗣️ 情景例句
Fifteen minutes! Thank you. Good-bye.
十五分钟 ！谢谢 。再见。
Better go to bed supperless than rise in debt.
宁可饿肚子，切莫去借债。
Imagine an earthquake shock shaking the floor, the paper, you and your hand.
假定地震发生了，地板、纸、你和你的手都会动，