impetus
英 ['?mp?t?s]
美['?mp?t?s]
- n. 動(dòng)力；促進(jìn)；沖力
考試真題
- One impetus for the policy is that companies are already starting to build massive constellations, comprising hundreds or thousands of satellites with many moving parts among them.
2019年6月六級(jí)真題（第二套）閱讀 Section C