somewhere along the line
US /ˈsʌmˌwɛr əˈlɔŋ ðə laɪn/
UK /ˈsʌmˌwɛr əˈlɔŋ ðə laɪn/

1.
在某個環節, 在某個時候
at some unspecified point during a process or sequence of events
:
•
I must have made a mistake somewhere along the line.
我一定是在某個環節出了錯。
•
Things went wrong somewhere along the line, and we lost the deal.
在某個環節出了問題,我們失去了這筆交易。