open the floodgates
US /ˈoʊpən ðə ˈflʌdˌɡeɪts/
UK /ˈoʊpən ðə ˈflʌdˌɡeɪts/
1.
打开闸门, 放任自流
to allow something to happen or be expressed freely, often something that was previously restricted or held back
:
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Removing the regulations would open the floodgates to uncontrolled development.
取消这些规定将打开闸门，导致失控的发展。
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When she started talking about her past, it was like she had opened the floodgates of her emotions.
当她开始谈论她的过去时，就像她打开了情感的闸门。