v. 感觉( perceive的现在分词 )，视为，认为，理解为；

[例句] A key task is to get pupils to perceive for themselves the relationship between success and effort...

[例句] 'Precisely what other problems do you perceive?' she asked.

n. 预防措施( precaution的名词复数 )，防备，避孕措施；

[例句] Could he not, just as a precaution, move to a place of safety?...

[例句] I had taken the precaution of doing a little research before I left London...

n. 负责人( principal的名词复数 )，[法律]本人，主要的人（或物）；

[例句] The principal reason for my change of mind is this.

[例句] ...the country's principal source of foreign exchange earnings...

adj. 有孔的；

[例句] The size of your pores is determined by the amount of oil they produce.

[例句] A plant's lungs are the microscopic pores in its leaves.

n. 原型，雏形，蓝本( prototype的名词复数 )；

[例句] Chris Retzler has built a prototype of a machine called the wave rotor.

[例句] ...the first prototype aircraft.

n. 似非而是的隽语，看似矛盾而实际却可能正确的说法( paradox的名词复数 )，用于语言文学中的上述隽语，有矛盾特点的人[事物，情况]；

[例句] The paradox is that the region's most dynamic economies have the most primitive financial systems...

[例句] The paradox of exercise is that while using a lot of energy it seems to generate more...

n. 多年生植物( perennial的名词复数 )；

[例句] ...the perennial urban problems of drugs and homelessness...

[例句] There's a perennial shortage of teachers with science qualifications.

v. 使烦恼，纠缠( pester的过去式和过去分词 )；

[例句] I thought she'd stop pestering me, but it only seemed to make her worse...

[例句] I know he gets fed up with people pestering him for money.

adj. 经皮的，由皮的；

adj. 脓的，含脓的；

触诊，扪诊；

n. 电视机之显像管；

铲起，舀；

[例句] Use both hands to scoop up the leaves...

[例句] He began to scoop his things up frantically.

加起来，算出总数；

n. 零用钱；

[例句] We agreed to give her £6 a week pocket money.

[例句] Volunteers receive £21 pocket money each week, accommodation and expenses.

（指一整段笑话中最后几句最能引人发笑的）点睛之笔，妙语如珠；

n. 北极熊；

n. 电话号码；

跳远；

n. 白杨，（非洲，阿拉伯和欧洲的）角蝰（一种毒蛇）；abbr. Active Server Page的缩写，意为“动态服务器页面。；