被ucla拒了，但是始终还是无法割舍，于是决定试试appeal，想问一下，写appeal letter的时候有什么需要注意的？
还有，ucla的appeal页面上说"High grades received in the senior year, recently acquired awards, or an increase in activities are not a basis for the reversal of a decision." 那到底要写什么才比较有说服力 光示爱有用吗
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