You don't have to go high-tech here unless you really want to. A pen and paper works just fine.
你不必使用高科技，一支笔一张纸足够。
Most of the time, to go high-tech, you need to have gone medium-tech first.
更多时候，你需要先有中级科技，再有高级科技。
Most of the time, to go high-tech, you need to have gone medium-tech first.
更多时候，你需要先有中级科技，再有高级科技。
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