Barack Obama's inaugural ceremony will include poetry by Elizabeth Alexander and music by singer Aretha Franklin, violinist Itzhak Perlman and cellist Yo-Yo Ma.

VOA: special.2009.01.19

It's like joining the army at eighteen; at twenty-four, that's what you do if you have an MA from Cambridge.

你18岁就该入伍，24岁，的剑桥硕士毕业生就该。

耶鲁公开课 - 弥尔顿课程节选

For this guy, F = ma will be 10 - f = 3a.

对这个物体,F = ma 就是 10 - f = 3a

耶鲁公开课 - 基础物理课程节选

Cellist Yo-Yo Ma, violinist Itzhak Perlman, pianist Gabriela Montero and clarinetist Anthony McGill will play a work written by composer John Williams for the event.

VOA: special.2009.01.16

What's the difference between saying F = -kx and F = ma?

= -kx 与 F = ma 的区别在哪里

耶鲁公开课 - 基础物理课程节选

They included musician Yo-Yo Ma, figure skater Kristi Yamaguchi and Queen Noor of Jordan.

VOA: special.2010.06.28

The free-body diagram, it says you can pick any one body that you like and apply F = ma to it, provided you identify all the forces acting on that body.

所谓隔离法,就是说你可以任意 选取一个物体,分析出它所受的所有力后,单独对其运用 F = ma 进行计算

耶鲁公开课 - 基础物理课程节选

They make funny noises and can sing with other Sing-a-ma-jigs.

VOA: special.2010.11.26

Inaugural Music The Marine Corps Band, Aretha Franklin, Yo-Yo Ma.

VOA: special.2009.01.16

accompanied by cellist Yo-Yo Ma during the sacrament of Holy Communion.

VOA: standard.2009.08.29

"I'm worried about HIV and crime-everything Ma'am, everything,I'm worried."

VOA: standard.2010.05.29