But beyond what is necessary for these purposes, there will be no invasion, no using of force against or among the people anywhere."

VOA: special.2009.07.30

There's the hard sphere. It wants to collide against the wall to create a force on the wall, and I have a couple of the hard spheres that are nearby, right, and in the absence of any interactions, I get a certain pressure.

给墙一个作用力,现在它的附近，还有许多小球,没有相互作用时,它将直接冲向这面墙。

麻省理工公开课 - 热力学与动力学课程节选

He says that these attacks will only become more and more routine unless the government organizes a strong counter-force against its foes.

VOA: standard.2009.12.05

Initially,Czech police used force against the demonstrators.

VOA: standard.2009.11.17

It seemed as if a heavy body was thrown against the table with a force that pushed against his chest.

VOA: special.2009.10.31

One of the biggest changes is that the task force now advises against mammograms for most women under fifty years old.

VOA: special.2009.11.18

All his movements were made against a force that could reach six times the power of gravity.

VOA: special.2010.07.07

She says many laws discriminate against women in the areas of property, labor force and marriage.

VOA: special.2011.03.22

All of them were ordered to move against the Union force at Gettysburg.

VOA: special.2009.11.05

It gained victory after victory against a smaller, weaker Confederate force.

VOA: special.2009.12.03

Or whether you take a very hard line against them to try to force changes coming in from below within the government.

VOA: standard.2009.08.14

The United States has the largest military force in the country among the 42-nation coalition fighting the eight-year-old war against the insurgents.

VOA: standard.2009.09.15

He says many of the Embera report they fled their homes after one or another of the groups tried to force them to collaborate in attacks against the rival group.

VOA: standard.2009.03.22

In the past year, the United States says it helped the Kenyan army develop a Ranger Strike Force, an elite counter-terrorism unit capable of conducting operations against infiltrators and armed groups.

VOA: standard.2009.05.01

In Bou Saifi, a village south of Baghdad, gunmen killed at least 24 people Friday in what authorities say was an attack by al-Qaida members against families of men linked to Awakening Councils, a pro-U.S.Sunni force that helped Iraq fight extremists and regain a measure of relative calm in recent years.

VOA: standard.2010.04.04