v. 提取，提炼，设法得到，选取，摘录，获得；

[例句] ...the traditional method of pick and shovel to extract coal...

[例句] Citric acid can be extracted from the juice of oranges, lemons, limes or grapefruit.

adj. 失去的，迷路的，不知所措的；v. 遗失，失去（ lose的过去式和过去分词），（使）失去（所需要的东西，尤指钱），（因事故、年老、死亡等）损失，浪费；

[例句] Barely had I set foot in the street when I realised I was lost...

[例句] I took a wrong turn and we got lost in the mountains.

n. 运动，活动，动作，举动，乐章；

[例句] It's part of a broader Hindu nationalist movement that's gaining strength throughout the country.

[例句] ...the women's movement.

n. 收益，得益，利润，红利，净值利润率；vt. 有益于…，对…有益的，得益，创利润；vi. 有益，获利；

[例句] The bank made pre-tax profits of £3.5 million...

[例句] You can improve your chances of profit by sensible planning...

n. 纸，被单，一张（通常指标准尺寸的纸），一大片（覆盖物），表

[例句] Once a week, a maid changes the sheets.

[例句] ...the luxury of silk sheets.

n. 习惯，习性，气质，宗教服装；vt. 给…穿衣服，打扮；

[例句] He has an endearing habit of licking his lips when he's nervous...

[例句] Many people add salt to their food out of habit, without even tasting it first.

n. 螺母，螺帽，坚果，坚果果仁，难对付的人，[乐]弓根；v. 采坚果，拾坚果；

[例句] Nuts and seeds are good sources of vitamin E.

[例句] If you want to repair the wheels you just undo the four nuts.

vi. 撤退，后退，撤销，作罢，（眼睛等）凹进，[航]向后倾斜；n. 撤回，静居处，引退期间，静思，静修；

[例句] 'I've already got a job,' I said quickly, and retreated from the room...

[例句] The young nurse pulled a face at the Matron's retreating figure.

n. 对比，对照，差异，对照物，对立面，[摄]反差；

[例句] ...the contrast between town and country...

[例句] The two visitors provided a startling contrast in appearance...

adj. 完美的，正确的，优秀的，极好的；n. [语]完成时；

[例句] He spoke perfect English...

[例句] Hiring a nanny has turned out to be the perfect solution...

vi. 踩，踏，行走，交尾；vt. 踩成，踏出，步行于，踩（烂）；n. 踏，踩，走，交尾，（楼梯的）踏板，轮胎接触地面的部分；

[例句] Oh, sorry, I didn't mean to tread on your foot...

[例句] I had white rugs on the floor, but people were scared to tread on them in case they marked.

n. 量，数量，总额，本利之和，全部效果，全部含义；vi. （在意义、价值、效果、程度等方面）等于，等同，接近，合计，总共，发展成为；

[例句] He needs that amount of money to survive...

[例句] I still do a certain amount of work for them...

n. 协定，协议，同意，一致，合同书，（词之间性、数、人称方面与…）一致；

[例句] It looks as though a compromise agreement has now been reached...

[例句] The two countries signed an agreement to jointly launch satellites.

adj. 准确的，严密的，精密的，精确的；vt. 要求，苛求，迫使，强求；

[例句] I don't remember the exact words...

[例句] The exact number of protest calls has not been revealed...

n. 机智，才智，智慧，富有机智的人，打趣话，玩笑话；

[例句] Boulding was known for his biting wit...

[例句] They love her practical attitude to life, her zest and wit.

adj. 抽象的，理论上的，难解的，抽象派的，茫然的；n. 抽象概念，抽象派艺术作品，摘要，[化]萃取物；vt. 提取，分离，转移（注意等），概括，摘录，剽窃；

[例句] ...abstract principles such as justice...

[例句] It's not a question of some abstract concept.

n. 冲突，战斗，相互干扰，矛盾；vi. 抵触，争斗，战斗，冲突；

[例句] Try to keep any conflict between you and your ex-partner to a minimum...

[例句] Employees already are in conflict with management over job cuts...

adj. 不断的，持续的，永恒的，始终如一的，坚定，忠实的；n. [数]常数，常量，不变的事物，永恒

[例句] She suggests that women are under constant pressure to be abnormally thin...

[例句] Inflation is a constant threat...

adj. 现在的，最近的，流行的，流传的；n. 趋势，电流，水流，涌流；

[例句] Under normal conditions, the ocean currents of the tropical Pacific travel from east to west...

[例句] The couple were swept away by the strong current.

n. 勇气，内脏，直觉，肠；adj. 本能的，直觉的；vt. 毁坏（建筑物等）的内部，取出…的内脏；

[例句] By the time they finish, the crewmen are standing ankle-deep in fish guts.

[例句] It is not always necessary to gut the fish prior to freezing.