There was a mass of clothes on my brother's bed.
我哥哥的床上堆了一大團衣服。
A mass of dark clouds covered the sky before the typhoon came.
颱風來之前，一大片烏雲蓋住了天空。
My little sister turned a mass of clay into a cute cat.
我妹妹把一團黏土捏成一隻可愛的貓。
We have masses of homework this weekend.
我們這個週末有一大堆功課。