They're improving day by day.

他们在一天天地改进。

《牛津词典》

Day by day his condition improved.

他的健康状况一天天好转。

《牛津词典》

Competition is getting hotter day by day.

竞争日趋白热化。

《牛津词典》

Tens of thousands of people come to the city to attend the ten-day South by Southwest Music,Film and Interactive festivals.

VOA: special.2010.04.02

That is not true for Crete because, although they had a script-- and we have available to us tablets with those writings on them-- to this day no one has deciphered the language written by the Minoans.

不过对于克里特来说不行,因为,虽然他们的确有一些手稿存世...,我们能够看到这些写着字的残片,不过直到今天,没有一个人能破译米诺斯文明的文字

耶鲁公开课 - 古希腊历史简介课程节选

The shortest term debt instrument in the United States is the Federal Funds Rate, which is an overnight rate--one day maturity-- and the longest issued by the Government is a thirty-year government bond, which will be repaid three decades in the future.

美国最短期的债券,是联邦基金利率,隔夜拆兑,一天到期,而时间最长的国债,是一种三十年期的政府债券,未来三十年才兑现

耶鲁公开课 - 金融市场课程节选

Day-by-day the tracking poll can only show temporary gains or losses attributable to temporary events.

CNN: About the Tracking Polls

"But that is something we are evaluating at on a day-by-day basis, " Matthews said.

CNN: Would you pay for this story?

Japan is swimming in and out recessions, and the US is moving closer day-by-day.

FORBES: Equity Market Sell-Off Is Tapering Off; Gold At $1850; 10 Yr Bond Steady at 2.10 percent