That was when the first COVID-19 wave spread through the country, pushing down prices.

当时，第一波新冠肺炎疫情席卷全国，压低了消费物价指数。

The wave spread across the Tyrrhenian Sea and, much weakened, reached the Bay of Naples.

浪潮越过第勒尼安海，减弱了许多，到达那不勒斯湾。