Don't put anything that's wet somewhere like this. It will make things damp and cause mold.
It'll get damp and moldy if you put anything that's wet there.
ーDon't put anything that's wet somewhere like this. It will make things damp and cause mold.
「こんなところに濡れたもの入れないで。湿気ってカビが生えちゃう。」
make things damp and cause mold で「湿気ってカビの原因になる」
ーIt'll get damp and moldy if you put anything that's wet there.
「そこに濡れたもの入れたら、湿気ってカビが生えちゃう。」
get damp and moldy で「湿気ってカビが生える」とも言えます。
ご参考まで!