When business is better, find the refund application approval, no negative profit.
起来后发现生意也好转了，退款申请得到了批准，总算没有负盈利。
Pure scientific research usually is done with no thought of application or profit; it is a job to be done.
纯科学研究一般不考虑应用和利润，但它是一项不可缺少的工作。
Pure scientific research usually is done with no thought of application or profit; it is a job to be done.
纯科学研究一般不考虑应用和利润，但它是一项不可缺少的工作。
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