1 in case (sth happens)

2 if

3 once (sth happens, then...)

4 when

5 in a short time

6 in one day

1 New Year's Day

1 earthquake

1 to shake

2 to shock

3 to stun

4 shocking

5 stunning

6 shock

1 to shock

2 to astonish

1 in imminent peril (idiom)

2 on the brink of crisis

1 to be at death's door (idiom)

1 lit. cries of grief shake the heavens

2 great sorrow (idiom)

1 fortune as unpredictable as the weather, every day may bring fortune or calamity (idiom); sth unexpected may happen at any moment

1 to inspire awe throughout the empire (idiom)