Ever since I started using my new MacBook Air as my primary non-work laptop, I've been frustrated that you can't just click on the clock to show the calendar, the way Windows 7 does.

自从我开始使用新MacBook Air作为我的非工作笔记本，对于不能像在Windows 7系统里面那样在时钟上点击后弹出日历这一点，我觉得有点失望。

youdao

The paper introduces the system design and operation principle of the primary reference clock equipment.

介绍了基准时钟的系统设计及工作原理。

youdao

Biological clock was the primary physiological function for insect.

生物测时是昆虫的基本生理功能。

youdao

And just a few years before the first children to learn by these methods are about to go on and become parents themselves, it seems that ministers could be about to turn back the clock in primary schools.

BBC: Are parents being left out of the maths equation?

They successfully employed this approach during the primary season, running negative ads around the clock in key states.

FORBES: Money Is The Critical Issue In This Campaign

Intel has spent years and billions of dollars convincing consumers that megahertz matters, and today PC buyers are trained to look for systems with higher speed processors--even if the raw clock speed of the chip isn't the primary driver of performance.

FORBES: Chief Executive Paul Otellini