我认为，不断自我竞争和自我挑战才是真正驱使我的动力。
I think competing with myself or challenging myself continuously is what really drives me.
我意识到跑步是一场自我斗争，与竞争无关，也与我是否擅长运动无关。
I realized running was a battle against myself, not about competition or whether or not I was athletic.
公司之间的竞争过于激烈，难以进行自我调节。
Competition between companies is too fierce for self-regulation to work.
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