对年龄的估计不过是其中一种形式的密切观察。
Assessing age is just one form of looking closely at how someone is doing.
其中一种形式是把映射信息嵌入Ruby类定义当中。
One form embeds the mapping information in the Ruby class definition.
其中一种方法是使用某种形式的时钟信号。
One way to do this is by using some form of clocking signal.
其中一种方法是使用某种形式的时钟信号。
One way to do this is by using some form of clocking signal.
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