Perborate
n. [化]过硼酸盐
🗣️ 情景例句
All you do is
你所要做的就是
Would you be so kind as to open this window for me? It's stuck.
你能为我打开这扇窗户吗？ 它粘住了。
They aren't very busy!
他们不很忙吧！