neck and neck
US /ˌnek ən ˈnek/
UK /ˌnek ən ˈnek/

1.
齊頭並進, 不分上下
very close in a race or competition
:
•
The two runners were neck and neck as they approached the finish line.
兩名選手在接近終點線時齊頭並進。
•
The election results were neck and neck until the very end.
選舉結果直到最後都不分上下。