He couldn't escape because the police kept track of him.
他逃不掉了的，因为警察在注意他的行动。
But I was lucky that I kept track of all our expenses by myself.
但幸运的是我记录了咱们所有的花费。
Stevens kept track of his business by telephone when he was in the hospital.
史蒂文斯先生住院期间通过电话了解他生意的经营情况。
Note that each of the code blocks has kept track of a separate instance of very_local_variable.
请注意，每个代码段都能追踪到very_local_variable的一个单独实例。
Note that each of the code blocks has kept track of a separate instance of very_local_variable.
请注意，每个代码段都能追踪到very_local_variable的一个单独实例。
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