【双语】你好！中国 | 掌中的物理学
The structure of the steelyard is very simple, consisting mainly of a marked scale, a movable counterweight, and a lifting cord. T
manual
供应商手册
本《供应商手册》的制定旨在实现产品品质的标准化管理，并消除供需双方合作中可能存在的模糊地带。我们深知，唯有与所有供应商通力协作，方能达成这一目标，同时也期待能与合作伙伴共同成长。
黑白电影中的浪漫瞬间
well，it's a kind of a slow form of exercise，which is all tightened by speaking manual just now.