wear and tear
固定搭配，指物品因正常使用而逐渐产生的损耗，属不可数用法。
The sofa is showing signs of wear and tear.
沙发已经显出磨损的痕迹。
磨损；损耗；时尚；流行款式；物品因使用时间长而导致的外观和/或强度损坏；时尚；穿着的
The act of having clothes or accessories on your body.
物品因使用时间长而导致的外观和/或强度损坏
Damage to the appearance and/or strength of an item caused by use over time.
时尚
Fashion.
穿着的
Wearing.
The tires show a lot of wear after that long road trip.
那次长途旅行后，轮胎磨损得很厉害。
用法提示：此处 wear 为名词，表示“磨损”。
Check the machine parts for wear before you reassemble them.
重新组装前检查机器零件的磨损情况。
用法提示：wear 在这里是名词，表示“损耗”。
These shoes are comfortable but they're showing signs of wear.
这双鞋很舒服，但已经出现磨损的迹象。
用法提示：wear 作名词，指“磨损”。
固定搭配，指物品因正常使用而逐渐产生的损耗，属不可数用法。
The sofa is showing signs of wear and tear.
沙发已经显出磨损的痕迹。
wear 作名词时不可数，常与 show、cause 等动词搭配，表示出现或造成磨损。
The car's tyres are showing signs of wear.
这辆车的轮胎已显出磨损的迹象。
用于说明衣物适合某种场合穿着，如 for everyday wear、for formal wear。
These shoes are comfortable enough for everyday wear.
这双鞋足够舒适，适合日常穿着。
用 on 引出具体承受磨损的部件。
The wear on the brakes was worse than expected.
刹车片的磨损比预想的更严重。
强调摩擦使表面受损，较正式，常用于技术或材料语境；日常口语中不如 wear 自然。
侧重水流、风或化学作用使表面剥落，若指人为日常使用造成的磨损，一般不宜直接替换。
泛指状况逐渐变坏，可用于抽象或非物理对象；不具体指表面摩擦受损，替换时要看语境。
含义宽泛，涵盖各种原因的破坏，并不专门指长期使用造成的磨损；用前需说明具体原因。
grammar · medium
易错句子This carpet has a wear near the door.
正确表达This carpet has wear near the door.
wear 表示“磨损、损耗”时是不可数名词，前面不能加不定冠词 a，直接说 wear 或 a lot of wear 即可；汉语里“有一处磨损”容易让人误加 a。
grammar · medium
易错句子My old shoes are wear and I need a new pair.
正确表达My old shoes are worn and I need a new pair.
描述“穿旧了、磨损了”这种状态，系动词后要用形容词 worn 作表语；wear 是名词或动词，不能直接放在 be 动词后当形容词，所以 are wear 错误，应为 are worn。
grammar · medium
易错句子His wear is very dirty after the game.
正确表达His clothes are very dirty after the game.
泛指“衣服”要用 clothes（谓语用复数 are）；wear 作名词主要指“磨损”，或只出现在 footwear、sportswear、evening wear 等复合词和固定搭配中，不能单独用来泛指衣服。
此处 wear 指“因使用而磨损”，与保养保持原状相对。
此处 wear 指“磨损”，与修复损坏相对。
此处 wear 指“磨损”，与恢复到原状相对。
（长期使用造成的）磨损，损耗
These shoes have suffered a lot of wear and tear.
这双鞋子已经遭受了很多磨损。
磨损的痕迹，用旧的迹象
The tablecloth was starting to show signs of wear.
桌布开始出现磨损的痕迹。
休闲装，便服
The dress code for the event is casual wear.
这次活动的着装要求是休闲装。
正装，礼服
You will need formal wear for the gala dinner.
参加晚宴你需要穿正装。
磨损和穿着通常体现在织物上，衣物话题常用。
与wear同属物品长期使用后的损坏现象。
耐磨程度是衡量物品耐久性的重要指标。
在时尚语境中，wear常与穿着风格搭配讨论。
配饰与衣物（wear）常一同构成整体穿着搭配。
损耗；磨损
This jacket has had a lot of wear and tear over the years.
这件夹克多年来磨损得很厉害。
破旧不堪；疲惫不堪
After the trip, the suitcase was a bit worse for wear.
旅行之后，这个手提箱有点破旧不堪了。
Choose the next layer that will help you use wear with more confidence.
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Dictionary facts from ECDICT, WIKTIONARY, WORDNET.