Word: 湿润 (shīrùn)

下过雨以后，空气变得很湿润。

Xià guò yǔ yǐhòu, kōngqì biànde hěn shīrùn.

After the rain, the air became very moist.

下过雨后，空气变得湿润而清新。

Xià guò yǔ hòu, kōngqì biànde shīrùn ér qīngxīn.

After the rain, the air became moist and fresh.

育苗要保持土壤湿润。

Yùmiáo yào bǎochí tǔrǎng shīrùn.

When raising seedlings, you need to keep the soil moist.