Steam became the motive force of the Industrial Revolution as coal and iron ore were the raw materials.

因为煤和铁矿石是原材料，蒸汽成为了工业革命的动力。

youdao

Energy is the motive force and obstruction of economic growth.

能源既是经济增长的动力因素，也是障碍因素。

youdao

This is all also the motive force that I do anything to give up never.

这也是我做任何事都从来不放弃的原动力。

youdao

For the mohajirs, Islam, the motive force that had brought them to Pakistan, had become subsidiary to the country's ethnic divisions.

ECONOMIST: Pakistan��wounded at birth

The West Midlands force said the motive for the attack, which happened at about 22:30 BST, remained unclear.

BBC: Mohammed Saleem

If 50 percent of the market is trash why assume the remaining 50 percent contains motive force?

FORBES: Tech Blue Chips Whiffing Like Testosterone-less Yankees