expend
英 [?k'spend; ek-]
美[?k'sp?nd]
- vt. 花费；消耗；用光；耗尽
考试真题
- Extreme athletes expend lots of energy breaking down and repairing and building muscles.
2019年12月六级真题（第二套）阅读 Section B
- since 1914, scientists have known that birds flying in formation—a V-shape —expend less energy.
2010年考研真题（英语二）阅读理解 Section Ⅱ