sap

sap怎么读

英式音标：[sæp]

美式音标：[sæp]

sap基本解释

n. [植] 树液；精力，元气；活力；坑道

vt. 使衰竭，使伤元气；挖掘以破坏基础

vi. 挖坑道

n. (Sap)人名；(柬)萨；(越)插

sap的意思释义

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；

变形

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

sap用法及例句

双语例句

用作名词(n.)

These bugs drink much sap every day.

这些虫子每天吸食许多树液。

Maple sugar is made from the sap of maple trees.

枫糖是由枫树的树液制成的。

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。

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。

They are ventilating the sap of a coal mine.

他们正在使煤矿坑道通风。

用作动词(v.)

The criticism sapped his determination.

批评削弱了他的决心。

I was sapped by months of hospital treatment.

我住院治疗几个月

Her long illness gradually sapped her strength.

长期的患病使她的体力渐渐衰竭。

例句参考

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

sap词源

sap

sap: English has three distinct words sap. The oldest, ‘plant-juice’ [OE], goes back to a prehistoric Germanic *sappam, which also produced German saft ‘juice’. This in turn was a descendant of Indo-European *sapon-, from which came Latin sapa ‘new wine’. Sap ‘undermine’ [16] was borrowed via French saper from Italian zappare, which may have been ultimately of Arabic origin.Its original literal sense ‘dig a trench or tunnel underneath in order to attack’ has now been largely superseded by the metaphorical ‘weaken’, which has been heavily influenced by sap ‘plant-juice’ (from the notion of ‘draining sap from a plant’). The colloquial sap ‘fool’ [19] may be short for an earlier sapskull, a compound formed from sap in the now seldom heard sense ‘sapwood’ – hence ‘wooden head’.

sap (n.1)

\"liquid in a plant,\" Old English sæpm from Proto-Germanic *sapam (cognates: Middle Low German, Middle Dutch, Dutch sap, Old High German saf, German Saft \"juice\"), from PIE root *sab- \"juice, fluid\" (cognates: Sanskrit sabar- \"sap, milk, nectar,\" Latin sapere \"to taste,\" Irish sug, Russian soku \"sap,\" Lithuanian sakas \"tree-gum\"). As a verb meaning \"To drain the sap from,\" 1725.

sap (n.2)

\"simpleton,\" 1815, originally especially in Scottish and English schoolboy slang, probably from earlier sapskull (1735), saphead (1798), from sap as a shortened form of sapwood \"soft wood between the inner bark and the heartwood\" (late 14c.), from sap (n.1) + wood (n.); so called because it conducts the sap; compare sappy.

sap (v.1)

\"dig a trench toward the enemy\'s position,\" 1590s, from Middle French saper, from sappe \"spade,\" from Late Latin sappa \"spade\" (source also of Italian zappa, Spanish zapa \"spade\"). Extended sense \"weaken or destroy insidiously\" is from 1755, probably influenced by the verb form of sap (n.1), on the notion of \"draining the vital sap from.\" Related: Sapped; sapping.

sap (v.2)

\"hit with a sap,\" 1926, from sap (n.3). Related: Sapped; sapping.

sap (n.3)

\"club, stick for hitting,\" 1899, from shortening of sapwood (see sap (n.2)) or sapling.