The first horse often goes hell for leather, hits a few fences but gets away with it.

第一匹马往往跑得飞快，会撞落几根横杆，但一般不会被罚分。

《柯林斯英汉双解大词典》

We heard the bus coming as we approached the corner so we ran hell for leather and just caught it.

我们走到那个拐角上时听到公共汽车来了，因此我们就拼命地跑，正好赶上。

youdao

I saw two young motorcyclists riding hell for leather down the road.

我看见两位摩托车手沿着公路飞驰而去。

youdao

It made light bets in plain old stocks and bonds and went hell-for-leather into exotic and illiquid holdings: commodities, timberland, hedge funds, emerging-market equities and private equity partnerships.

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