natural wear 自然損耗

natural wear
繁：自然損耗
简：自然损耗

再有三星手提電話叉電時電池爆炸冒煙，用戶情急之下拿起電話，但因燙手，電話跌落地撞崩角，後來拿到三星維修，三星竟稱「跌崩非自然損耗，要收1500港元維修費。」

手機充電爆炸跌崩角　三星拒客免費維修 （2016年12月6日）。on.cc東網，取自 http://hk.on.cc/hk/bkn/cnt/news/20161206/bkn-20161206003016105-1206_00822_001.html

“With the more intensive use, the natural wear and tear on the engines happens sooner,” he said. “By the time we get all the way through the fleet it’s going to take some time.”

Tovey, A. (2016, August 30). Japan’s ANA warns of three years’ work to Rolls-Royce’s engines. The Telegraph. Retrieved from http://www.telegraph.co.uk/business/2016/08/30/japans-ana-warns-of-three-years-work-to-rolls-royces-engines/