But scientists now can show that differences between the time when a shark's nostrils receive smells is more important than the strength of the odors.

VOA: special.2010.08.03

It's constant pressure. OK, so now, last time you looked at the Joule expansion to teach you how to relate derivatives like du/dV.

这是恒压的，好，上节课你们,学习了焦耳定律,以及怎样进行导数间的变换。

麻省理工公开课 - 热力学与动力学课程节选

Let's now go back and instantiate these ideas for the knapsack problem we looked at last time In particular, for the 0-1 knapsack problem.

让我们回来用具体例子,来说明我们上次看过的背包问题,特别是对0-1背包问题来说。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's why now it's time for the country to serve you.

WHITEHOUSE: Wounded Warrior Project Soldier Ride

If you're a basis slacker, now's the time to shape up.

FORBES: Magazine Article

If you're watching your mobile data diet, now's the time to go download the Opera Mini 7 app from the Android Market.

ENGADGET: Opera Mini 7 comes to Google Play, treads lightly on your data plan