receipt困难

Then, unbeknownst to the students, the researchers studied their anonymized meal-card purchases for that semester — nearly 14,000 receipts for almost 500 students.

然后，在学生不知情的情况下，研究人员研究了他们那学期匿名化处理后的饭卡消费记录——近500名学生的近14,000张收据。

Second, paper checks have the advantage that they [provide] receipts, something that many consumers are unwilling to [give up].

其次，纸质支票的优点在于能提供收据，而许多消费者不愿放弃这一点。

In a recent study [involving] over 400 healthy adults, researchers from Carnegie Mellon University in Pennsylvania examined the effects of perceived social support and the receipt of hugs [on] the participants’ susceptibility to developing the common cold after being [exposed] to the virus.

在最近一项{{5}}400多名健康成年人的研究中，宾夕法尼亚州卡内基梅隆大学的研究人员考察了感知到的社会支持和获得拥抱{{6}}参与者在{{7}}病毒后患普通感冒易感性的影响。