run wild
US /rʌn waɪld/
UK /rʌn waɪld/
1.
野蛮生长, 放任自流, 天马行空
to grow or develop without control or limits
:
•
The children were allowed to run wild in the park.
孩子们被允许在公园里撒野。
•
His imagination often runs wild when he's writing stories.
他写故事时，想象力常常天马行空。