v. 努力争取(for)( labor的第三人称单数 ); 苦干; 详细分析; （指引擎）缓慢而困难地运转

n a social class comprising those who do manual labor or work for wages

n productive work (especially physical work done for wages)

n concluding state of pregnancy; from the onset of contractions to the birth of a child

n an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement

n a political party formed in Great Britain in 1900; characterized by the promotion of labor's interests and formerly the socialization of key industries

n the federal department responsible for promoting the working conditions of wage earners in the United States; created in 1913

n any piece of work that is undertaken or attempted

v strive and make an effort to reach a goal

v work hard

v undergo the efforts of childbirth