The Fitbit Tracker, a new wireless, wearable device the size of a book of matches, aims to take the guesswork out of staying fit.The legwork, however, remains up to you. 运动追踪者，一种新型可随身携带的装置，仅有火柴盒大小，将为你完成繁复的计数工作，当然跑腿儿的事仍旧由你自己干啦。
Have you got a book of matches? 你有火柴吗?
I need a book of regular stamp and two of airmail. 我要一封普通邮票和两封航空邮票。
Half a dozen air mail labels and a book of stamps. 半打航空信签和一本邮票。
The petrified tree was a book of nature. 树木化石是大自然的历史记录。