精益的英文：
lean

参考例句：

Replenish vital .essence, tonify kidney-yin and nourish the bone marrow
补肾滋阴，填精益髓

This trait gives us an advantage when a spread consists of low-cal, filling fare such as veggies and lean protein.
当一顿盛宴中都是蔬菜和精益蛋白质等低卡路里且易饱的食物时，这种理论对我们减肥有益。

lean是什么意思：
v. 斜，倾斜
n. 瘦肉
adj. 简洁的；犀利的；直接的

The damaged ship was leaning to port.
受损坏的船向左舷倾斜。

They lean on the world and by their in tensity and virtue.
生命短暂即不圆满，此种观点荒谬无理，生命的价值在其影响，在其勃发，在其立德于世。

The ship is leaning over to port.
船正向左舷倾斜。

to nestle to; to lean close to
依偎

a man with literary leanings
对文学有兴趣 [爱好文学] 的人