From each according to their ability, to each according to their work.
Tips
grammar
所能 is a 所-nominalization: 所 + verb 能 turns 'be able' into 'that which one can do'. Almost always appears as 尽…所能 (do all in one's power) or 各尽所能 (each contributes what they can, the famous Marxist slogan). On its own it's bookish.
