behind the curve
US /bɪˈhaɪnd ðə kɜrv/
UK /bɪˈhaɪnd ðə kɜrv/

1.
落後, 跟不上潮流
lagging behind current developments or trends; not up-to-date
:
•
Our company is behind the curve when it comes to adopting new technology.
我們公司在採用新技術方面落後了。
•
If you don't keep learning, you'll quickly find yourself behind the curve.
如果你不持續學習,你很快就會發現自己落後了。