President Obama promised to hold a summit on entrepreneurship in his speech to the Islamic world last June in Cairo.

VOA: special.2010.05.10

The goal of virtual office hours is if you're sitting down in mather or the quad or wherever, even off campus on some weekend, we'll still hold, not as many, but some virtual office hours.

虚拟办公时间的目标是，如果你坐在,院子里或其他地方，甚至是某个周末不在学校里,我们仍然保持联系，虽然不是很多，但是有一些虚拟办公时间。

哈佛公开课 - 计算机科学课程节选

Sometimes the old aristocracy will be able to hold on for a very long time and to suppress any attempt to change things.

有时一些老贵族,会冥顽不灵,固执己见,试图遏止这些变革力量

耶鲁公开课 - 古希腊历史简介课程节选

Hold on, hold on, hold on, hold on, hold on, hold on, hold on.

WHITEHOUSE: Press Briefing

But hold on, but hold on, but hold on, but hold on.

WHITEHOUSE: Press Briefing

Hold on -- hold on, one second, get your microphone.

WHITEHOUSE: President Obama��s Town Hall in Cannon Falls, Minnesota