1. The trickle become a stream; the stream has now become a torrent.
    涓涓细流汇成了小溪, 小溪现在已变成了奔腾的江河.

2. The trickle became a stream; the stream has now become a torrent.
    涓涓细流汇成小溪，小溪现已变成了奔腾的江河。