名词
1. 达到;获得
The attainment of an aim is the achieving of it.
2. 成就;造诣;才能
An attainment is a skill you have learned or something you have achieved.
1. arrival at a new stage
e.g. his attainment of puberty was delayed by malnutrition
2. the act of achieving an aim
e.g. the attainment of independence
3. an ability that has been acquired by training