prep.①横过;通过:He swam across the river.他游过河。②在对面;在…那边:My house is across the road.我家就在马路对面。The woods are across the river.树林在河对面。③交叉:He sat with his arms across the chest.他坐在那儿,双手抱在胸前。come (run) across偶然...[继续阅读]

    n.①行为;动作:That is an act of justice.那是正义的行为。②(戏)幕:The first act was not very interesting.第一幕戏不很有趣。v.①行动;举止:Think carefully before you act.你在行动前必须仔细想一想。We must act at once.我们必须立即行动。②表演;扮演:H...[继续阅读]

    n.行为;作用:This is a bad action.这是不良行为。Actions speak louder than words.行动比语言更有说服力。...[继续阅读]

    a.积极的;活跃的:He takes an active part in labor.他积极参加劳动。David is an active student in our school.大卫在我们学校里是一名活跃的学生。be active in…积极于…:He was active in organizing the union to protect the bird.他积极组织护鸟协会。...[继续阅读]

    n.活动;活力:Classroom activities are things done by pupils in class.课堂活动是学生们在教室里所做的事情。a man full of activity充满活力的人political activities政治活动∥ social activities社会活动∥ mental activity思维活动...[继续阅读]

    n.男演员:He is a good actor in our country.他是我国一位优秀演员。...[继续阅读]

    n.女演员:She wanted to be an actress.她想当演员。...[继续阅读]

    a.实际的;真实的;实在的:Those were his actual words.那些是他的实话。They know nothing of the actual situation of the company.他们对公司的实际情况一无所知。...[继续阅读]

    ad.实际上;实在:He was really there,but I didnt see him actually.他真的在那儿,但我实在没看见他。Actually,you are quite right.实际上,你是非常对的。...[继续阅读]

    n.公元(Anno Domini的缩略式)...[继续阅读]