Calibrate and measure master ring, template and master template.
校准和测量样圈、样板及对板。
At first, because of my skill to master is not good, so you always see me on the shore of the swim ring, time is long, I also feel some trouble.
一开始，由于我技能掌握的不好，所以大家经常看到我在岸边套着游泳圈转来转去，时间久了，我也觉得有些烦恼。
At first, because of my skill to master is not good, so you always see me on the shore of the swim ring, time is long, I also feel some trouble.
一开始，由于我技能掌握的不好，所以大家经常看到我在岸边套着游泳圈转来转去，时间久了，我也觉得有些烦恼。
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