Certain motile flagellated bacteria can rapidly spread over the slightly moist surface.

有些活动的有鞭毛的细菌在稍微潮湿的表面上扩张得很快。

youdao

I've flipped thousands of those light-as-air, moist and slightly tart pancakes over the years, and they still have a hold on me.

NPR: Sourdough: More than a Bread

The dough should be moist and only slightly sticky.

NPR: Two Centuries of 'Baking in America'