Backpiece
护背
🗣️ 情景例句
She's come up with a new idea for increasing sales.
她想出了增加销售量的主意。
It's up to you.
由你决定。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。