练习计时器


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개발자: YanCheng Zhao
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This app could help you to record your practice time. Combine 20 hours and tomato time(25 minutes), you can get a new skill quickly.

20 Hours : its a theory of Josh Kaufman, google it to get more information.
Tomato time: use 25 minutes efficiently.
Level : every level needs the same number of tomato time.