That is not all, however, because there are four large windows in the wall separating the office from the book cache, so that Mr. Tai is separated from it only by glass and can take in hand any disturbances that occur within.
不僅如此，隔開書庫與辦公室的牆上有四扇大窗戶，讓戴廉可以隔著玻璃，隨時掌握書庫裡的動靜。