This flashcard explains the word "rub." It can be a verb meaning to move something against a surface, to irritate, or to touch. It can also be a noun for friction, an obstacle, or a difficulty.
此闪卡解释了单词 "rub"。可以作动词，意为擦、摩擦或触怒；也可以作名词，表示摩擦、阻碍或困难。
| 单词 | rub |
|---|---|
| 音标 | [rʌb] [rʌb] |
| 释义 | vt.["擦，摩擦","用…擦","触怒","（使）相互磨擦"] vi.["接触，摩擦","擦伤","在困境中持续下去"] n.["摩擦的动作","表面不平","阻碍，困难"] |
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