They could end up with a 50-point winning margin.

他们最后可能会以50点的优势获胜。

《柯林斯英汉双解大词典》

The result was that Robert McDonnell widened his winning margin from 323 votes to 360 votes.

ECONOMIST: Virginia and the Senate: Every vote counts | The

Those voters could very well provide the winning margin in what promises to be a close race.

CNN: Bill Press: Seducing the McCainiacs

Partly as a result of that scepticism, the Tories are (again) consolidating an election-winning margin in the polls.

ECONOMIST: Bagehot