watch out for 提防、戒备、密切注意……
watch over 看守、监视……
wave sb．on／away 挥手叫某人前进或走开
wave to 向……挥手等致意
wear away 使……受到磨损、磨灭
wear down 使……损耗、磨损等；使…… 筋疲力尽
wear off 逐渐减弱；使……擦去
wear out 使……疲乏；把……穿破；使……减弱
wear sth．to 把……穿得到……程度
weep at 对……哭泣
