“推动力”的英语可以翻译为：impetus，urge ...

这一决定会给东伦敦的经济复苏带来新的推动力。This decision will give renewed impetus to the economic regeneration of east London.它们的低级同类, 如鹧鸪, 有一种同样大的推动力, 但很快就疲劳了.Their humbler followers , such as partridges, have a like power of strong propul...