sap

n.

精力，元气；树液；活力；坑道

vt.

使衰竭；使伤元气；挖掘使倒塌；

vi.

挖坑道；

复数：saps过去式：sapped过去分词：sapped现在分词：sapping第三人称单数：saps

1. These bugs drink much sap every day.
   这些虫子每天吸食许多树液。
2. Maple sugar is made from the sap of maple trees.
   枫糖是由枫树的树液制成的。
3. The sap flowed out when he broke the stem of the flower.
   他把花茎折断，汁液就流了出来。
4. It was the beginning of the spring and the sap was rising in the boys.
   正当初春季节，勃勃的生气在小伙子们身上奔涌。
5. They are ventilating the sap of a coal mine.
   他们正在使煤矿坑道通风。

1. The criticism sapped his determination.
   批评削弱了他的决心。
2. I was sapped by months of hospital treatment.
   我住院治疗几个月
3. Her long illness gradually sapped her strength.
   长期的患病使她的体力渐渐衰竭。

Sap Pressure in Vascular Plants
Sap pressure in vascular plants. Science
sap, VMware, and Yahoo!.Spark: Cluster Computing with Working Sets
Xylem Structure and the Ascent of Sap
Sap Pressure in Vascular Plants: Negative hydrostatic pressure can be measured in plants.
Characterization of sap-1, a protein recruited by serum response factor to the c-fos serum response element.
Biology bacteriocyte-associated endosymbionts of plant sap-sucking insects.
Plant Structures. (Book Reviews: Xylem Structure and the Ascent of Sap)
Differential regulation of the MAP, sap and RK/p38 kinases by Pyst1, a novel cytosolic dual-specificity phosphatase
The X-linked lymphoproliferative-disease gene product sap regulates signals induced through the co-receptor SLAM