sap

C1 大学 FREQ #12302 ★☆☆☆☆

n. 树液, 体液, 活力, 坑道, 消弱, 警棍 vt. 使排出体液, 使伤元气, 使衰竭, 挖坑道逼近, 逐渐侵蚀 vi. 挖坑道, 消弱 [计] 共享汇编程序, 结构分析程序, 符号汇编程序, 服务器广告协议

发音

US /sæp/

词形变化

saps 复数 saps 三单 sapping 现在分词 sapped 过去式 sapped 过去分词

释义与例句

n. C1
  1. 1.

    The juice of plants of any kind, especially the ascending and descending juices or circulating fluid essential to nutrition.

    树液

    不可数 可数
  2. 2.

    The sapwood, or alburnum, of a tree.

    不可数 可数
  3. 3.

    Any juice.

    可数 不可数
  4. 4.

    Vitality.

    可数 比喻 不可数
  5. 5.

    A naive person; a simpleton.

    可数 俚语 不可数

    Look at the sap mowing our lawn while we pretend our own lawnmower is broken.

  6. 1.

    A narrow ditch or trench made from the foremost parallel toward the glacis or covert way of a besieged place by digging under cover of gabions, etc.

    政治 军事
  7. 1.

    A short wooden club; a leather-covered hand weapon; a blackjack.

    美国 可数 俚语

    I risk my whole future, the hatred of the cops and Eddie Mars' gang. I dodge bullets and eat saps.

v.
  1. 1.

    To exhaust the vitality of.

    比喻 及物
  2. 2.

    To drain, suck or absorb sap from (a tree, etc.).

    及物
  3. 1.

    To make unstable or infirm; to unsettle; to weaken.

    及物
  4. 2.

    To gradually drain (someone's energy or vitality).

    及物

    to sap one’s conscience

    He saps my energy.

  5. 3.

    To pierce with saps.

    及物 政治 军事
  6. 4.

    To subvert by digging or wearing away; to mine; to undermine; to destroy the foundation of.

    及物
  7. 5.

    To subvert by digging or wearing away; to mine; to undermine; to destroy the foundation of.

    To proceed by mining, or by secretly undermining; to execute saps.

    不及物 及物
  8. 1.

    To strike with a sap (with a blackjack).

    俚语 及物

    [A]s he passes the mouth of a narrow alley two men step out quickly. One of them saps Marlowe expertly — they drag him out of sight.

词汇关系

相关短语

词源

From Middle English sap, from Old English sæp (“juice, sap”), from Proto-West Germanic *sap (“sap, juice”) (compare Dutch sap, German Saft, Icelandic safi), from Proto-Indo-European *sab-, *sap- (“to taste”) (compare Welsh syb-wydd (“fir”), Latin sapa (“must, new wine”), Russian со́пли (sópli, “snivel”), Old Armenian համ (ham, “taste”), Avestan 𐬬𐬌-𐬱𐬁𐬞𐬀 (vi-šāpa, “having poisonous juices”), Sanskrit सबर् (sabar, “juice, nectar”)). More at sage. sap (“naive person”) is a clipping of sapskull (literally “person with sap in their skull”).

来源:wiktionary