要功

variant of 邀功[yao1 gong1]

to demand / to request / to coerce

important / vital / to want / to ask for / will / going to (as future auxiliary) / may / must / (used in a comparison) must be / probably / if

(bound form) to demand; to coerce

to want; to need; to ask for / will; shall; about to / need to; should / if (same as 要是[yao4 shi5]) / (bound form) important

meritorious deed or service / achievement / result / service / accomplishment / work (physics)

If you work at it hard enough, you can grind an iron bar into a needle. / cf idiom 磨杵成針|磨杵成针, to grind an iron bar down to a fine needle (idiom); fig. to persevere in a difficult task / to study diligently