wear and tear

音標(biāo)發(fā)音

These were more complex to design, build and maintain than those of rivals, but they also used fuel more efficiently and suffered less wear and tear.
相比對手的引擎，雖然它的引擎的設(shè)計、生產(chǎn)和維護(hù)都更為復(fù)雜，但是它們更節(jié)省能源并且更耐磨損。
Managing wear and tear may not be as complicated as it looks, for the last five items on Dr de Grey’s list seem to be linked by a single word: oxidation.
管理身體磨損并沒有表面上看起來那樣復(fù)雜，因為德?戈瑞單子上的后五條的共同之處似乎可用一個詞概括：氧化。
He pointed out that e-books were not only cheaper, because of the lack of wear and tear and thefts, but they also offered great opportunities for older housebound readers.
他指出，電子圖書不僅因為不會被磨損、撕毀或者盜竊而廉價，而且它們更是給那些腿腳不便利的老年讀者帶來了福音。

It's taking a tremendous toll on our military forces in terms of wear and tear.
NPR: Debate on Iraq Timetable Moves to Senate
But despite booming oil revenues, Venezuela's basic infrastructure is showing signs of wear and tear.
NPR: Venezuela Copes with Crumbling Infrastructure
The wear and tear of the drugs and the emotional give-and-take was getting to me.
NPR: 'The Harder They Fall': Fame and Addiction

Wear and tear is the damage or change that is caused to something when it is being used normally.

摩擦磨損
Finally, the wear and tear experiments on the lubricating oil were performed on the four-ball friction machine.
最后利用四球式摩擦磨損試驗機(jī)對該潤滑油進(jìn)行了摩擦磨損性能測試。
耗損