achievement的解释
n. 成就,成绩,完成,达到
achievement的例句
Flying across the Atlantic for the first time was a great achievement.
首次飞跃大西洋是一项了不起的业绩。

I felt a great sense of achievement when I reached the top of the mountain.
当我到达山顶的时候，我有一种巨大的成就感。