Martin Fisher -- a co-founder of the non-profit KickStart -- demonstrates the technology on the rooftop of his San Francisco office.

VOA: standard.2010.08.09

I only give, I don't know, about 10% or 20% for getting the right number in a computation. I tell my graders, if the student demonstrates minimal acceptable proficiency that student has to get a passing score.

我只是给，我不知道，10%或者20%的随机概率得到合适的数字,我告诉我的学生们，如果有人想证明,最小可接受的熟练,就是学生们得到一个及格的分数。

麻省理工公开课 - 固态化学导论课程节选

It demonstrates not only Socrates' sense of his superiority to the laws of Athens.

那展示了苏格拉底意识到,自己优于雅典城邦的法律。

耶鲁公开课 - 政治哲学导论课程节选

National Investment Commission Chairman Richard Tolbert says Buchanan Renewable's demonstrates the strength of both Liberia's commitment to renewable energy and its investment climate.

VOA: standard.2009.09.13

Mr.Obama said maneuvering by Senate Republicans to block extension of unemployment benefits demonstrates, what he called,a lack of faith in the American people.

VOA: standard.2010.07.19

Russian Deputy Foreign Minister Grigory Karasin says Tbilisi's accusation against Moscow demonstrates a "sick imagination and irresponsible behavior on the part of Georgian leadership."

VOA: standard.2009.05.05

The fight to end violence against children is the theme for this year's activities in Senegal, which Coulibaly says demonstrates the government's commitment to the cause.

VOA: standard.2009.11.22

He gets excited each time he demonstrates the capabilities of his new,experimental WAIEX aircraft.

VOA: standard.2010.08.11

She says the raid demonstrates the commitment of law enforcement and the serious investigative work done to find the perpetrators of the bombing and dismantle their terror network.

VOA: standard.2009.09.17