尽管很努力
In spite of one's hard work
以上为机器翻译结果，长、整句建议使用 人工翻译 。
尽管很努力，他还是没有把数学学好。
Hard as he worked, he could not learn maths well.
youdao
Hard as he worked, he didn't learn math well.
听着，我的孩子，尽管我很努力，但我什么也教不了你。
Hark you, my son, try as I will I can get nothing into your head.
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