Member for
2 ปี 8 เดือนAge: 9-12
Level: 3
Language: Chinese
(zh)
ไอดี: 1526447
14/10/2021
Country code: MY
Country: Malaysia
Main content: 机械 (2008569)
From worksheet author:
定滑轮，动滑轮，滑轮组
Other contents:
滑轮
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