attain ·verb
Definition: to achieve something, especially after a lot of work Level: C1
通过多年专注的训练，她达到了很高的健康水平。
She ___attained a high level of fitness through years of dedicated training.
为了有效教学，个人的熟练程度必须高于学生。
To teach effectively, one must have ___attained a proficiency level higher than that of the students.
经过数十年的研究，这位科学家终于实现了他开发可持续能源的目标。
After decades of research, the scientist finally ___attained his goal of developing a sustainable energy source.