They took a leaf out of the open source play-book and made all their services into internal open source systems.
他们借鉴了开源的做法，将他们所有的服务都实现为内部的开源系统。
2
Each player has to mime the title of a movie, play or book.
每一名参加者都得用哑剧动作表现出一部电影、戏剧或一本书的标题。
《牛津词典》
3
He could not watch TV except for two programs a week, could not play with his friends after school until he finished his homework, and had to read two books a week and write book reports about them.