spare no effort

基本解释

If you study, we will spare no effort to support you.
如果你学习，我们会不遗余力地支持你们。
Developed nations should spare no effort to finance their economically disadvantaged counterparts.
发达国家应该不遗余力地资助贫国。
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I shall spare no effort to restore world trade by international economic readjustment, but the emergency at home cannot wait on that accomplishment.
我建议，作为可行的策略、首要事务先行。虽然我将不遗余力通过国际经济重新协调所来恢复国际贸易，但我认为国内的紧急情况无法等待这重新协调的完成。

You must love loyal advisors and servants, whether they be foreigners or our own people, and spare no effort to serve the common good."
你一定要热爱俄国那些忠诚的大臣和臣民,不管他是来自外国还是国内,同时你也必须不遗余力地为公共利益服务"
耶鲁公开课 - 欧洲文明课程节选

Foreign Minister Ahmet Davutoglu vowed Turkey would spare no effort in protecting diplomatic facilities.
NPR: Suicide Bomber Kills Guard At US Embassy In Turkey
I've also directed that we spare no effort in investigating the origins of these suspicious packages and their connection to any additional terrorist plotting.
WHITEHOUSE: President Obama’s Statement on Security Alert
But as President of the United States, I'm going to spare no effort to respond to this crisis for as long as it continues.
WHITEHOUSE: President Obama Speaks on NYC Incident and BP Oil Spill in Louisiana