n.樹液；汁液；精力；易上當?shù)娜耍坏氐?/p>

v.挖地道；削弱；逐漸耗竭

These bugs drink much sap every day. 這些蟲子每天吸食許多樹液。

Maple sugar is made from the sap of maple trees. 楓糖是由楓樹的樹液制成的。

It was the beginning of the spring and the sap was rising in the boys. 正當初春季節(jié)，勃勃的生氣在小伙子們身上奔涌。

They are ventilating the sap of a coal mine. 他們正在使煤礦坑道通風。

The criticism sapped his determination. 批評削弱了他的決心。

I was sapped by months of hospital treatment. 我住院治療幾個月

Her long illness gradually sapped her strength. 長期的患病使她的體力漸漸衰竭。