🧩 词语组成解析
胸, 胸骨
🗣️ 情景例句
By the way, what are you going to do on Christmas?
顺便问一下，圣诞节你打算做什么？
Scratch my back and I'll scratch yours.
朋比为奸。
But this does not worry me.
但我从不为此烦恼。