attainment [əˈteɪnmənt]

以下由轻松背单词网站提供

n.达到，到达；［常pl.］成就，造诣

when you achieve something

We congratulated her upon her attainment to so great an age. 我们祝贺她高寿。
The attainment of the success is not easy. 成功的取得并不容易。