idiom
open the floodgates
允许某事在大规模上发生;触发连锁反应
Meaning
to allow something to happen on a large scale; to trigger a chain reaction
Example
When the security flaw was leaked, it **opened the floodgates** for hackers worldwide.
当安全漏洞泄露时,它为全球的黑客**打开了洪水闸门**。