Member for
2 ปี 11 เดือนAge: 10
Level: 4B
Language: Chinese
(zh)
ไอดี: 1533136
16/10/2021
Country code: MY
Country: Malaysia
Main content: 机械 (2008569)
From worksheet author:
确认动力点、阻力点&支点的位置。
Other contents:
杠杆
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![科学 科学](/sites/default/files/styles/worksheet/public/def_files/2021/10/16/110161612432185061/110161612432185061001.jpg?itok=yogJwUje)