1 to complement

2 to make up for a deficiency

1 to repair

2 to patch

3 to mend

4 to make up for

5 to fill (a vacancy)

6 to supplement

1 to replenish

2 to supplement

3 to complement

4 additional

5 supplementary

6 classifier: 个 gè

1 to make up missed lesson

2 to reschedule a class

1 complementary

2 to complement each other

1 lit. to mend the pen after sheep are lost (idiom)

2 fig. to act belatedly

3 better late than never

4 to lock the stable door after the horse has bolted

1 lit. use others' strengths to make up for one's weak points (idiom from Mencius)

2 to use this in place of that

3 what you lose on the swings, you win on the roundabouts

1 to compensate for lack of ability through hard work (idiom)

1 If you don't plug the small hole, the big hole will be hard to repair (idiom); A stitch in time saves nine.

1 A small hole not plugged will make you suffer a big hole (idiom); a stitch in time saves nine