(1) [be able to achieve success one way oranother]∶比喻做事情得心应手

(2) [gain advantage from both sides]∶比喻办事圆滑

zuǒ yòu féng yuán

lit. to strike water right and left (idiom)

fig. to turn everything into gold

to have everything going one’s way

to benefit from both sides

（无论怎样进行都顺利） be able to achieve success one way or another

（办事圆滑） win (gain) advantage from (of) both sides; have one's bread buttered on both sides; (as) wanton as a calf with two dams

1) have everything going one's way

2) gain advantage from both sides

【释义】逢：遇到；源：水源。到处遇到充足的水源。原指赏识广博，应付裕如。后也比喻做事得心应手，非常顺利。

【近义】得心应手、称心如意

【反义】左支右绌、左右为难

【出处】《孟子·离娄下》：“资之深，则取之左右逢其原。”

【用例】这样，他们在落笔的时候，便已有着“成竹在胸”、“左右逢源”的形势。（邹韬奋《经历·青年“老学究”》）