1 abbr. for Canada 加拿大[Jiā ná dà]

2 surname Jia

1 to become a member

2 to join

3 to mix into

4 to participate in

5 to add in

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 grave

2 serious

3 severe

4 critical

1 each word carries weight

2 a promise must be kept (idiom)

1 lit. not knowing what's important (idiom); no appreciation of the gravity of things

2 naive

3 doesn't know who's who

4 no sense of priorities

1 high merit and worthy prospects (idiom)

1 promotion in official post and salary raise (idiom)

1 promotion to the nobility (idiom)