有人曾谈论到几个不同的统计数字，但只有这个才是惟一精确的。 Some different statistics have been bandied about, but these are the only accurate ones.
他打字是很精确的。 He is accurate in his typing.
计算机是一种快速、精确的符号加工系统，它能接收、存储、处理数据并产生输出结果。 A computer is a fast and accurate symbol processing system. It can accept, store, process data and produce output results.
