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Rub英[rʌb]美[rʌb] v.擦；磨；搓；（使）相互摩擦；摩擦（尤指引起疼痛或损害）涂。 n.擦；抹；搓；揉；问题；困难。 [例句]rub the surface smooth.
What Muscle Rub Is Safe During Pregnancy at Christopher Larochelle blog
