profusion

大量、丰富、繁多正式

The garden was filled with a profusion of wild flowers.

花园里开满了各式各样的野花。

充沛、丰沛正式

Rain fell in such profusion that the streets flooded.

雨势十分惊人，街道都淹水了。

大量地、成群地

Butterflies appear in profusion here every summer.

每年夏天这里都会出现成群的蝴蝶。