WORD BY WORD
rub
英/ɹˈʌb/
美/ˈɹəb/
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01n.
摩擦, 困难, 障碍, 磨损处
the act of rubbing or wiping
02v.
擦, 搓, 摩擦, 惹怒
move over something with pressure; cause friction; scrape or rub as if to relieve itching
03v.
摩擦, 擦破
move over something with pressure; cause friction; scrape or rub as if to relieve itching