instinct: n.1.本能,才能,直觉。2.生性,天性,天才。短语和例子Suckling is an instinct in mammals. 哺乳是哺乳动物的本能。 act on instinct 凭直觉行动。 by instinct 凭本能,本能地。 Birds learn to fly by instinct. 鸟儿学飞系由于本能。 have an instinct for 生来就
sex: n.1.性;(男女的)性别;〔集合词〕男性,女性。2.性的活动[器官];性交;性欲;色情。短语和例子persons of both sexes 男男女女。 the two sexes 男女;雌雄。 without distinction of age or sex 不分男女老幼。 have sex 〔美俚〕发生性行为。 the fair [gentle, softer, w