at a snail's pace
US /æt ə ˈsneɪlz peɪs/
UK /æt ə ˈsneɪlz peɪs/

成语
1.
慢如蜗牛, 极其缓慢
extremely slowly
示例:
•
The traffic was moving at a snail's pace.
交通慢如蜗牛。
•
The construction work is progressing at a snail's pace.
施工进展慢如蜗牛。
在 Lingoland 学习这个单词
慢如蜗牛, 极其缓慢
extremely slowly