I will finish the task by main force.

我会尽全力完成这项任务。

youdao

He caught hold of my coat-tails and pulled me down by main force.

他抓住我的上衣后摆，用力把我拽倒。

youdao

His main point is that the vast, vast majority of threatened languages are those spoken by isolated indigenous groups, and that these languages are, in fact, a driving force of their isolation.

他的主要观点是那些绝大部分受到威胁的语言只被一些孤立的土著群体所掌握，而实际上这些语言是他们之所以孤立于世界之外的主要原因。

youdao

It is ironic that competition through innovation by oligopolists may be the main driving force of growth and higher living standards, since oligopolies are often seen as a threat to the public interest and as a target for antitrust action.

ECONOMIST: Economics focus

But he said the main salary costs were governed by the size of the force, adding that it was not worthwhile for some officers to become a chief constable "because you could be losing money coming from one force going to the other".

BBC: Hunt widens for new police chief

Yemen's main airport has re-opened after a protest by air force troops against the sacking of their commander.

BBC: Yemen's Sanaa airport re-opens after pro-Saleh protest