At that time, it was customary for weather stations to note days when thunderstorms occurred nearby.

按照当时的惯例，气象站会记录下附近有雷暴发生的日子。

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At that time, it was customary for weather stations to note days when thunderstorms occurred nearby.

按照当时的惯例，气象站会记录下附近有雷暴发生的日子。

youdao