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2016英语四级篇章词汇阅读篇NO.4免费下载，
be mentally challenging. Criticism from coaches, parents, and other teammates, as well as pressure to win can create an excessive amount of __1__ or stress for young athletes. Stress can be physical, emotional, or psychological and research has indicated that it can lead to burnout. Burnout has be
2016英语四级篇章词汇阅读篇NO.4
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