Check the wear of the electric brush and see whether the constant force spring has distorted or not. Over-worn electric brush and distorted force spring should be replaced.
检查电刷磨损情况,及恒力弹簧是否变形,电刷磨损过多或恒力弹簧已变形予以更换。
The top can be worn buttoned up or open over a T-shirt.
这件上衣可以系上扣子或不系扣子套在T恤衫的外面穿。
The bag has narrow straps, so it may be worn over the shoulder or carried in the hand.
这个书包有细长带子,所有它可以被肩挎,也可以用手拎。
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