bumper slide
保险杠幻灯片
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The basic problem seems to be with non-bumper cases, specifically ones that slide on to the phone, and the danger of trapped particles scratching the back of the phone while taking the case on and off.
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应用推荐
模块上移
模块下移
不移动