expend
英 [?k'spend; ek-]
美[?k'sp?nd]
- vt. 花費(fèi)；消耗；用光；耗盡
考試真題
- Extreme athletes expend lots of energy breaking down and repairing and building muscles.
2019年12月六級真題（第二套）閱讀 Section B
- since 1914, scientists have known that birds flying in formation—a V-shape —expend less energy.
2010年考研真題（英語二）閱讀理解 Section Ⅱ