Squelette
翼形中线(弧线), 剖面中线
🗣️ 情景例句
Thank you. It's delicious.
谢谢，味道很好。
Then, all of a sudden, it became cloudy and began to rain.
可是突然天就变了，乌云密布并下起雨来。
Byrd at once ordered his men to throw out two heavy food sacks.
伯德马上命令他的助手们把两个沉重的食物袋扔掉，