conserve

[kən'sə:v]

释义

v.保存
to use or manage (natural resources) wisely;preserve;save

例句
Granny:I suppose I should conserve my energy for the luncheon you're going to throw me.(2 Broke Girls)
奶奶：我觉得，我应该保留我的体力去应付你给我举办的午宴。（破产姐妹）