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

1.
뒤처지다, 시대에 뒤떨어지다
lagging behind current developments or trends; not up-to-date
:
•
Our company is behind the curve when it comes to adopting new technology.
우리 회사는 신기술 도입에 있어서 뒤처져 있습니다.
•
If you don't keep learning, you'll quickly find yourself behind the curve.
계속 배우지 않으면, 금방 뒤처지게 될 거야.