【基础英语】every so often 是经常吗？

Every so often 偶尔

e.g. He still phones me every so often. 他偶尔还给我打电话。

e.g. Living in the city is nice, but we still try to go to the countryside every so often. 在城市住挺好的，但是我们还是尽量偶尔去乡下。