n. 橡胶;橡皮;决胜局;避孕套;
adj. 橡胶制成的;
vt. 涂橡胶于;用橡胶制造;
vi. 扭转脖子看;好奇地引颈而望;
rubb=rub相互磨擦+er名词后缀 → 能相互摩擦的 → 橡皮
🗣️ 情景例句
That's right. Grandpa hangs it there for good luck.
是的。爷爷把它放在那儿 以求好运。
This is a poem about frontier life in the United States.
这是关于在美国的边疆生活的一首诗。
One night, the gaoler decided to play a joke on his colleague to find out if, after so many performances, he had managed to learn the contents of the letter by heart.