hard wear 羽绒服
They Wear Hard Hats 他们佩带硬帽子
hard and wear resistant coating 抗磨加硬膜
You'll wear yourself out if you carry on working so hard.
你要是继续这样拼命工作，身体会吃不消的。
She had to wear old clothes and work hard while the sisters wore beautiful clothes and had fun.
她不得不穿旧衣服并辛苦工作，而姐妹们穿着漂亮的衣服，玩得很开心。
Mechanical seal with tungsten carbide hard wear-resistant, with durable, wear-resistant characteristics, can pump more than 8000 hours of continuous operation safe.
机械密封采用硬质耐磨碳化钨，具有耐用、耐磨等特点，可以使泵安全连续运行8000小时以上。
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