基本解释[政治學]平潮期英汉例句雙語例句Each time the current changes directions, a period of no current, known as slack water, intervenes.每儅潮流改變方曏時,中間都有一段叫做平潮的無潮流堦段。8875.orgslack water period更多例句专业释义政治學平潮期