i used to think that i was strong
我曾经以为我很坚强
以上为机器翻译结果，长、整句建议使用 人工翻译 。
"I used to think that I was young and strong until I found out that my heartbeat would become irregular if I was overworked for more than three days," said Wang.
王说，“我过去总以为我还很年轻力壮，直到我发现只要我持续过度工作达到三天以上，我的心跳就会变得不正常。”
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