春天是采集树液的最佳季节，因为这时植物中的汁液流动最旺盛。

Spring is the best time to collect ___sap, as the liquid in plants flows most actively then.

长期的加班逐渐消耗了他的精力。

Working overtime for a long time has gradually ___sapped his energy.

别当个傻瓜，他明显是在骗你。

Don't be such a ___sap, he's clearly trying to trick you.