不积跬步无以至千里，
原文材料
Although the obstacles to Pleistocene rewilding are substantial and the risks are not trivial, we can no longer accept a hands-off approach to wilderness preservation as realistic, defensible, or cost free.
尽管更新世野生动物复兴计划困难重重而且风险不小，我们再也不能认为不干预政策对于荒野保护来说是现实的、合情合理的、或者没有成本的!
推荐句式
Although the obstacles to A are substantial and the risks are not trivial, we can no longer accept a hands-off approach to A' as realistic, defensible, or cost free.
尽管 A 困难重重，风险也不小，但我们再也不能就 A 放任自流了，不能认为这种方法是现实的、合理的、或者是没有成本的!
这里面A'换成A的另外一种说法就行了。操作起来非常简便。而且本句用起来也比较容易，尽管做A有风险，但我们还得做，因为不做的话后果可能更严重!
原创例句–1
Although the obstacles to environmental protection are substantial and the risks are not trivial, we can no longer accept a hands-off approach to environmental preservation as realistic, defensible, or cost free.
尽管环境保护困难重重而且风险不小，我们再也不能认为不干预政策对于环境保护来说是现实的、合情合理的、或者没有成本的!
原创例句–2
Although the obstacles to the cultivation of positive personality traits among children are substantial and the risks are not trivial, we can no longer accept a hands-off approach to children's mental health as realistic, defensible, or cost free.
尽管培养孩子的积极性格困难重重而且风险不小，我们再也不能认为不干预政策对于孩子的心理健康来说是现实的、合情合理的、或者没有成本的!
重点总结
obstacle |ˈɒbstək(ə)l|
noun
a thing that blocks one's way or prevents or hinders progress:
the major obstacle to achieving that goal is money.
trivial |ˈtrɪvɪəl|
adjective
of little value or importance:
huge fines were imposed for trivial offences | trivial details.
hands–off
(as adj.hands-off)
not involving or requiring direct control or intervention:
a hands-off management style.