1 to go to work

2 to be on duty

3 to start work

4 to go to the office

1 early

2 morning

3 Good morning!

4 long ago

5 prematurely

1 early morning

2 classifier: 个 gè

1 Good morning!

1 surname Ban

1 to follow the prescribed order; to keep to the working routine (idiom)

1 to leave early and return late (idiom)

1 The sooner you set to work, the sooner you'll reap the rewards. (idiom)

1 if I (you, she, he...) had known it would come to this, I (you, she, he...) would not have acted thus (idiom)

2 to regret vainly one's past behavior

1 to treat sb with courtesy (idiom)