wear down . reduce or impair by long wearing；erode磨掉；侵蚀

The soles of my shoes are already worn down．It is time I got a new pair．我的鞋底磨破了，该换双新鞋了。

Wind and rain have worn the monument down．风雨将那座纪念碑侵蚀了。

wear down . exhaust；make or become weaker by constant pressure or attack使衰弱；使精疲力尽

His strength has been worn down by illness．疾病已使他体质衰弱了。

Many young mothers appear worn down with hard work and looking after children．许多年轻的母亲因为工作辛苦和照料孩子而显得疲惫不堪。

wear down . prevail by persistence；overcome 由于坚持而获胜；克服

Through perseverance，they gradually wore down opposition to the scheme．通过坚持不懈的努力，他们逐渐克服了实施这项计划的阻力。

The general has decided to wear down the enemy's strength by a long slow campaign．将军决定用持久战的打法来消耗敌人的力量。

wear off . lose power；diminish in effect；disappear失效；效力减少；消失

He could feel the wound aching again as the effect of the medicine wore off．随着药性的渐渐消失，他感到伤口疼痛了。

My headache isn't serious．It will wear off after an hour or so．我的头痛不严重，一小时左右就会好的。

His enthusiasm for the plan seems to have worn off；he never speaks about it any more．他对这项计划的热情似乎已经消失了，他现在提都不提了。

His displeasure wore off．他的不愉快心情渐渐消失了。

wear off . remove（nap，paint，）through continuous pressure，friction，磨掉（绒毛、油漆等）

The nap of your coat is worn off．你外衣上的绒毛都磨光了。

The brightness of the paint has worn off a little．油漆的光泽已经有些磨损了。

wear on . pass gradually or slowly in time （时间）慢慢地过去；缓缓消逝

The snow will melt as the day wears on．雪随着白天时间的消逝而融化。

As the hours wore on，he grew more and more impatient．时间慢慢地过去，他越来越不耐烦了。

wear on . continue继续

The boys'quarrel wore on all afternoon．孩子们吵吵闹闹，持续了整个下午。

The battle wore on through the night．战斗持续了一夜。

wear on . become angry；irritate；tire激怒；使恼火；使疲倦

Having to stay indoors all day long is tiresome for the children and wears on their mother's nerves．孩子们整天呆在家里很厌烦，也使得他们的母亲感到焦躁不安。

wear out . tire out；exhaust使精疲力尽；耗尽

Playing with little children really wears me out！跟小孩子们在一起玩真把我累坏了。

She keeps wearing herself out for other people．她总是为别人忙得精疲力尽。

After about an hour，my patience began to wear out．大约一小时以后，我开始有点忍耐不住了。

wear out . become useless变得无用；用坏

The machine has worn out．那台机器已经报废了。

Children's shoes wear out quickly．孩子们的鞋很快就穿坏。

The child has worn out his clothes；will you get him another suit? 孩子已经把衣服穿破了，你给他再买一套好吗?

wear out . consume（time，）tediously 消磨（时间等）

He has worn out miserable days with patience．他耐心地度过了悲惨的岁月。

The meeting wore out all afternoon．会议消磨了整个下午的时间。

wear the trousers . wear the pants . have a man's authority；be the boss of a family or household为一家之主；当家

He couldn't have the final say，because his wife was the one who wore the trousers in their house．他在家作不了主，因为他家里是他妻子说了算。

wear thin . become thin from use变薄；磨薄

His old pair of pants has worn thin at the knees．他旧裤子的膝盖处已经磨薄了。

wear thin . decrease；grow less or less interesting减少；渐渐变得无趣味

The joke began to wear thin when you heard it too many times．这个笑话听过好几遍以后就没有什么趣味了。

wear well . continue to be useful or liked for a long time经久耐用；始终令人满意

Nylon is easy to wash and wears well too．尼龙既好洗又耐磨。

Their marriage has worn well．他们的婚姻一直美满幸福。

wear well . carry，accept or treat properly 举止适当；妥善处理

Murphy has won many honours，but he wears them well．墨菲赢得了很多荣誉，但他对待荣誉谦虚而得体。

weary of . tired of对…厌倦

She was never weary of this exercise．她对这种练习从不厌倦。

 weather out . cancel because of bad weather 因天气恶劣而取消

The usual air show was weathered out．例行的飞行表演因天气不好而取消了。

 weather out . hold out against to the end坚持到底

We weathered out the winter in a lonely dwelling．我们在一所荒凉的房子里挺过了冬天。

 weed out . remove as useless or hurtful；sort out淘汰；剔除

The exam helps to weed out unsatisfactory candidates．考试有助于淘汰令人不满意的候选者。

weigh up . examine by a balance；ascertain the heaviness of称；称出…的重量

Cotton was picked and weighed up．棉花采下来并称了重量。

weigh up .evaluate；consider carefully估量；权衡；仔细考虑

He was weighing up whether to stay or not．他在考虑是否留下来。

The judge carefully weighed up all the evidence．法官仔细掂量了所有的证据。

You should weigh up the consequences of the action．你应仔细考虑这一行动的后果。