#巫玆纳德##MondayMuse# 
The tennis world is constantly changing. What's true today may be wrong tomorrow. If you don't make progress, others will and you will be overtaken.
网球世界在不断地变化。今天是对的事，明天可能就变成错误的。如果你不进步，别人就会进步，你就会被超越。
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