群众臂挽著臂组成人墙。 The crowd linked arms to form a barrier.
我正在成人学校补习法语,到时好让他们大吃一惊。 I'm brushing up on my French at adult school just to surprise them.
少女大约到18岁时开始社交,通常要为她们举办盛大聚会,从此以后她们就被看做是成人了。 In society, girls come out when they reach the age of about eighteen, and usually it is at a big party in their honor; after that they are looked on as adults.
儿童无成人带领不得入内。 Children unaccompanied by an adult will not be admitted.
这些电影只适宜成人观看。 These films are suitable for adults only.