削弱

to weaken / to impair / to cripple

to peel with a knife / to pare / to cut (a ball at tennis etc)

to pare / to reduce / to remove / Taiwan pr. [xue4]

weak / feeble / young / inferior / (following a decimal or fraction) slightly less than

weak; feeble / young / inferior; not as good as / (following a decimal or fraction) slightly less than