If you can't explain it simply, you don't understand it well enough.
如果你不能简单地解释它，你就不能很好地理解它。
-- Albert Einstein 爱因斯坦
If you can't explain it simply, you don't understand it well enough.
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If you can't explain it simply, you don't understand it well enough.
如果你不能简单地解释它，你就不能很好地理解它。
-- Albert Einstein 爱因斯坦
