rosin

◎ rosin是什么意思 n. 松香, 松脂vt. 用松香涂 v. rub rosin onto rosin的用法和例句： 1. All I got were traces of chalk and rosin. 上面只有粉笔和松香的痕迹 2. Furthermore, I found traces of rosin on his hands. 此外 我還在他的手上發現了殘留的松香 3. Oh, I nee...