vt.

1. 达到；获得
   They are not likely to attain this aim.

   他们未必能够达到这一目标。

2. 到达

vi.

1. 达到；获得[（+to）]
   She tried in vain to attain to fame.

   她想出名但没有成功。

2. 到达[（+to）]
   He will soon attain to manhood.

   他很快就要到达成年期了。

n.

1. 成就，造诣[U]

v.

1. succeed in accomplishing.
2. reach (a specified age, size, or amount).