透彻理解的英文怎么说

透彻理解的英文：
gain a insight into

No pains, no gains.
不劳则无获。

This ticket will gain you admission [will gain admission for you].
这张票将使你得以入场。

Its gain is the product of the gains of its constituent branches.
它的增益等于它含有的分支的增益的积。