husband

在经济困难时期，我们不得不节约使用积蓄。

During hard times, we had to ___husband our savings carefully.

马拉松选手学会了保留体力，为最后冲刺做准备。

The marathon runner learned to ___husband her energy for the final stretch.

泉水干涸后，露营者不得不节约使用饮用水。

The campers had to ___husband their drinking water after the spring dried up.