The users can adjust decalescence speed by their self according to their physical quality. The waistcoat can meet the demand of different constitution users.
利用者可以按照本身的身体本质本身调整背心的吸热速度，实现了对分歧体质的人群都可以或许知足利用要求。
The users can adjust decalescence speed by their self according to their physical quality. The waistcoat can meet the demand of different constitution users.
利用者可以按照本身的身体本质本身调整背心的吸热速度，实现了对分歧体质的人群都可以或许知足利用要求。
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