Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a credit-card logo.
对餐馆的研究表明，当账单被放在印有信用卡标志的托盘上时，用现金付账的顾客往往会留下更多的小费。
Researchers also worry that the Bill and Melinda Gates Foundation, the most important philanthropic supporter, has not committed major financing for the additional studies on the gel. Dr.
研究者同时还担心，最重要的慈善支持者比尔和梅丽达·盖茨基金会也没有对凝胶研究所需的额外资金作出承诺。
Researchers also worry that the Bill and Melinda Gates Foundation, the most important philanthropic supporter, has not committed major financing for the additional studies on the gel.
研究者同时还担心，最重要的慈善支持者比尔和梅丽达·盖茨基金会也没有对凝胶研究所需的额外资金作出承诺。
But another bill could find more favor, funding studies on embryos incapable of developing into fetuses.
但是另一项很可能通过，它资助对于胚胎的研究但不转化为干细胞婴儿。
But another bill could find more favor, funding studies on embryos incapable of developing into fetuses.
但是另一项很可能通过，它资助对于胚胎的研究但不转化为干细胞婴儿。
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