léi / yǔ / jì / jié / dào / lái / qián / xué / xiào / jiǎn / chá / le / suǒ / yǒu / bì / léi / qì

雷雨季节到来前，学校检查了所有避雷器。

Before the thunderstorm season arrived, the school inspected all the lightning arresters.