Nearly all the rain falls during the summer monsoon.

几乎所有降水都发生在夏季季风时节。

Two years ago Japan's summer monsoon season was the wettest on record.

两年前，日本遭遇了有史以来最湿润的夏季季风季节。

We found out that the winter monsoon increased at the time that the summer monsoon decreased.

我们发现冬季季风在夏季季风减少的同时增加。

They were first and foremost a response to a climate in which a year's rains fall chiefly in the four brief months of the summer monsoon, when they fall at all.

梯级井首先是对一种气候的反应，在这种气候中，一年的降雨主要集中在夏季季风的四个月里，而这四个月正是雨季来临的时候。