And nomadic groups eventually coalesced into unstoppable forces on horseback.

而游牧族群最终联手成为马背上所向无敌的势力。

China has long been reluctant to send combat forces on UN missions.

长期以来，不愿派遣作战部队参与联合国行动任务。

He fled China with the retreating Japanese forces on August 14, 1945.

1945年8月14日，日军败退，他随日军撤离中国。

The protection forces on the ground were able to make significant number of arrests.

地面保护部队成功逮捕了相当多的人。

They help resist squishing forces on your skin and keep it hydrated and healthy-looking.

这些组织帮助抵抗皮肤收到的拉力，让皮肤保持水润健康。

Instead, they put forces on standby and reinforced their military presence in Eastern Europe.

相反，他们让部队处于待命状态，并加强了 他们在东欧的军事存在。

It will come into force on Friday.

该法案将于周五生效。

Rainsford forced himself on toward the gap.

雷恩斯福德强迫自己继续向豁口那边跑去。

But the credit belongs to the forces on the ground in Iraq and Syria, said spokesperson White.

发言人怀特表示，但功劳是属于伊拉克和叙利亚面临真枪实弹的军队的。

That part was forced on us!

那部分其实是强加给我们的！

You would not see American or NATO forces on the ground fighting the Russians on Ukraine's behalf.

你不会看到美国或北约部队在地面上代表乌克兰与俄罗斯作战。

The U.S. is providing air support, but not combat forces on the ground. NPR's Michele Kelemen reports.

美国为伊拉克提供的是空中支援，而不是地面战斗部队。NPR新闻的米歇尔·克莱门将带来详细报道。

Facing starvation, they're forced on to reservations.

面对着灭顶的饥荒 他们被迫迁往保留地。

Juan Guaido and his U.S. backers are hoping to put the powerful Venezuelan armed forces on the spot.

胡安·瓜伊多和他的美国支持者希望让强大的委内瑞拉武装力量陷入困境。

Is there something that could be forced on people?

有什么东西是可以强加给人们的吗？

Most U.S. troops will train and advise Afghan forces on everything from bomb disposal and logistics to aircraft maintenance.

大部分美军将训练阿富汗军队并为他们提供各种建议，包括拆弹处置、后勤以及飞机维护。

Roughly, the force of gravity or acceleration on an object.

粗略地说，就是作用在物体上的重力或加速度。

This is better than trying to force English on someone.

这比试图强迫别人学英语要好。

So essentially, what is the net force on this object?

所以实际上 作用於这个物体上的合力是多少？

Of course without the moon, the tidal forces on the world's oceans and lakes would drop dramatically as well.

当然，没有了月亮，世界上海洋和湖泊的潮汐力也会大幅下降。