1 boundary

2 state

3 realm

1 dream

2 illusion

3 reverie

1 delusion

2 fantasy

1 environment

2 circumstances

3 surroundings

4 classifier: 个 gè

5 ambient

1 magical

2 magic

3 illusion

1 The issue is in the past, and the situation has changed (idiom).

2 It is water under the bridge.

1 When you enter a country, enquire about the local customs (idiom); do as the natives do

2 When in Rome, do as the Romans do

1 When you enter a country, follow the local customs (idiom); do as the natives do

2 When in Rome, do as the Romans do

1 no end to learning (idiom); There's always something new to study.

2 You live and learn.

1 things change with the passage of time (idiom)