1 he or him

2 (used for either sex when the sex is unknown or unimportant)

3 (used before sb's name for emphasis)

4 (used as a meaningless mock object)

5 other

6 another

1 they

1 to add oil

2 to top up with gas

3 to refuel

4 to accelerate

5 to step on the gas

6 (fig.) to make an extra effort

7 to cheer sb on

1 to participate

2 to take part

3 to join

1 to raise

2 to increase

1 lit. the other mountain's stone can polish jade (idiom); to improve oneself by accepting criticism from outside

2 to borrow talent from abroad to develop the nation effectively

1 meeting an old friend in a foreign place (idiom)

1 to have no other use or purpose (idiom)

1 promotion in official post and salary raise (idiom)

1 promotion to the nobility (idiom)