walk / run up to = go / come up to 上前去
want all day off 请假一整天
wash away 冲走
wash down 冲走，冲垮
washing machine 洗衣机
watch out (for…) 留神，提防，注意
watch over 看守，照看
watch TV 看电视
wear away 磨掉，消耗
