n. 1.树液，(树皮下的)白木质。 2.体液，生命液；元气，精力，活力。 短语和例子 the sap of life 元气，精力。 the sap of youth 青年的活力。 vt. (-pp-) 榨取…的树液；去除…的白木质；使衰弱[衰竭]。 n. 1.【军事】(袭击敌人用的)坑道，对壕。 2.坑道的挖掘。 3.暗中的破坏，逐步的损坏，削弱。 vt.,vi. (-pp-) 1.(在…下面)挖掘使倒塌；(使)逐渐损坏，(使)逐渐削弱。 2.挖坑道进攻[逼近]。 3.(水等)逐渐浸蚀。 4.暗中颠覆。 短语和例子 sap a wall 挖墙脚。 sap a line of trenches 挖掘坑道逐渐逼近(敌方)防线。 n. 1.〔英学生俚〕用功读书的人；埋头工作的人。 2.〔口语〕讨厌的工作，苦活。 3.〔美、俚〕＝saphead. 4.〔美俚〕棍子。 短语和例子 It is such a sap. 这事真麻烦。 vt. (-pp-) 〔美俚〕用棍子打。 vi. 〔英学生俚〕死用功。 SAP ＝semi-armour-piercing 半穿甲。
a piece of metal covered by leather with a flexible handle; used for hitting people 同义词：blackjack, cosh,
a person who lacks good judgment 同义词：fool, saphead, muggins, tomfool,
a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
excavate the earth beneath
deplete; "exhaust one''s savings"; "We quickly played out our strength" 同义词：run down, exhaust, play out, tire,
SAP 可以是下列意思：
例句与用法
1.
The gulf war has sapped iraqi vitality badly . 海湾战争使伊拉克大伤元气。
2.
Everyone crowded around a huge cauldron of boiling sap . 大家都围挤在一个熬枫浆的大锅旁。
3.
The sap thickened immediately . 浆立刻变稠了。
4.
The sight of those tears on his face sapped her will-power . 看到他脸上的泪水，使她丧失了意志力。
5.
The vegetable world begins to move and swell and the saps to rise . 植物世界开始萌动、壮大、生气盎然。
6.
Some of those same trees produce a peculiar sap each spring . 有些这样的树每年春天都产生出一种独特的汁液。
7.
Bearing a grudge saps one's energies and accomplishes absolutely nothing . 记仇会消耗自己的精力，使自己一事无成。
8.
An arch of the bridge in the park has been sapped and sopped away . 公园里的那座桥有一个桥洞被水冲毁，而且被冲走了。
9.
It was the beginning of the spring and the sap was rising in the boys . 如今正是初春季节，孩子们胸中的血气已经开始涌涨。
10.
Our economic decline has been such as to sap the foundation of our diplomacy . 我国的经济衰落已发展到危及我国外交基础的地步。
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