| 单词 | sap |
| 释义 | Word Frequency sap 1(sæp) noun 1. a solution of mineral salts, sugars, etc, that circulates in a plant 2. any vital body fluid 3. energy; vigour 4. derogatory, slang a gullible or foolish person 5. another name for sapwood verbWord forms: saps, sapping or sapped (transitive) 6. to drain of sap Derived forms sapless (ˈsapless) adjective Word origin Old English sæp; related to Old High German sapf, German Saft juice, Middle Low German sapp, Sanskrit sabar milk juiceWord Frequency sap 2(sæp) noun 1. a deep and narrow trench used to approach or undermine an enemy position, esp in siege warfare verbWord forms: saps, sapping or sapped 2. to undermine (a fortification, etc) by digging saps 3. (transitive) to weaken Word origin C16 zappe, from Italian zappa spade, of uncertain origin; perhaps from Old Italian (dialect) zappo a goatWord Frequency SAP 1abbreviation for South African Police Word Frequency SAP 2(sæp) noun acronym for (in Britain) Standard Assessment Procedure: the recognized performance indicator for measuring energy efficiency in buildings |
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