| 单词 | principal |
| 例句 | principal adjective •the principal cause of poor air quality:main, chief, primary, leading, foremost, first, first-line, most important, predominant, dominant, (most) prominent | key, crucial, vital, essential, basic, prime, central, focal | premier, paramount, major, overriding, cardinal, preeminent, uppermost, highest, top, topmost | informal number-one. ANT minor.▶noun 1.•the principal of the firm:chief, chief executive (officer), CEO, president, chairman, chairwoman, director, managing director, manager, head | informal boss. 2.•the school's principal:headmaster, headmistress | dean, rector, chancellor, president, provost. 3.•a principal in a soap opera:leading actor/actress, leading player/performer/dancer, leading role, lead, star. 4.•repayment of the principal:capital (sum), debt, loan.USAGE principal, principle These two words, though often confused and used incorrectly and interchangeably, share no common definitions. Generally, it's enough to remember that principal (= chief, primary, most important) is usually an adjective and that principle (= a truth, rule, doctrine, or course of action) is virtually always a noun. Although principle is not a verb, we have principled as an adjective. But principal is sometimes a noun—an elliptical form of principal official ( Morgan is principal of the elementary school) or principal investment ( principal and interest). Substituting principal for principle is a fairly common blunder—e.g.: “The Ways and Means bill approved today, after more than a month of deliberation and voting, preserves two of the central principals [read principles ] put forth by the President: universal coverage and the requirement that employers assume 80 percent of its cost for their workers.” ( New York Times; July 1, 1994.) Substituting principle for principal is perhaps even more common—e.g.: “Audio CDs are a principle [read principal ] source of material for making music with samples.” ( Electronic Musician; June 1994.).Usage notes show additional guidance on finer points of English usage. |
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