微小差距：指两个或多个选项之间的差距非常小，难以确定哪个更好或更适合。
a small margin
同义词： narrowness / slimness
薄利
... safety margin安全界限，安全裕度；安全系数 narrow margin薄利；没有多少余地 margin trading保证金交易（交存一定保证金不支付全部货款的交易） ...
薄利；没有多少余地
He won by a narrow margin.
他以微小的差额获胜。
He lost by a narrow margin.
他以很小的差距失败了。
He was elected by a narrow margin.
他以微弱多数当选。
The brewery application was passed by a narrow margin of seven votes to six.
BBC: Plans for the former Robinsons Brewery site in Ulverston
Winning by a narrow margin in the popular vote, Kennedy became the first Roman Catholic President.
Nominated for President by acclamation in 1960, he lost by a narrow margin to John F.