It's like being a high jumper: you want to keep raising the bar until you knock it down, otherwise you don't know how high you can jump.

就像跳高比赛：在你撞到那条横杆之前你总是会努力让它升得更高，否则你不会知道你到底能跳多高。

youdao

However, Killie's Donovan Simmonds almost made the breakthrough in the 27th minute when he controlled Allan Russell's knock-down on the edge of the box, turned and volleyed inches over the bar.

BBC: Kilmarnock 0-1 St Mirren