His tired mind continued to wallow in self-pity. [VERB + in]

他疲惫的心继续沉溺于自哀自怜之中。

I wanted only to wallow in my own grief. [VERB in noun]

我只想沉湎于自己的悲伤中。

Never have I had such a good excuse for wallowing in deep warm baths. [VERB + in]

我从来没找到过如此好的理由，可以美美地泡个热水澡。

Dogs love splashing in mud and hippos wallow in it. [VERB in noun]

狗喜欢在泥水洼里扑腾，河马则喜欢在其中打滚撒欢儿。