spare no effort;try one's best;

It may be said that the teacher has done his very best to educate and help him.
老师对他的教育帮助可谓尽心尽力.
来源:《现代汉英综合大词典》Our aim is to: dedication to provide customers with products and services!
我们的宗旨是: 尽心尽力,为客户提供满意的产品和服务!
来源:互联网摘选Medical workers should put their hearts and souls into saving their patients.
医护人员要尽心尽力抢救病人.
来源:互联网摘选Drover: No matter your experience or your age, you pull your weight.
不管你之前有多少经验,不管你年纪多大, 都要尽心尽力.
来源:互联网摘选Delivering superior planning services and products to professionals and business owners.
尽心尽力为安省居民或公司提供一流理财服务和高质素金融产品!
来源:互联网摘选
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