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 yin and yang

2 heaven and earth

3 the universe

1 Qianling at Xianyang 咸陽市|咸阳市 in Shaanxi, burial site of third Tang emperor 高宗 and empress Wuzetian 武則天|武则天

1 Qianlong Emperor (1711-1799), sixth Qing emperor, princely title 寶親王|宝亲王[Bǎo Qīn wáng], personal name 弘曆|弘历[Hóng lì], reigned 1735-1799

1 in imminent peril (idiom)

2 on the brink of crisis

1 to be at death's door (idiom)

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

1 lit. to upend heaven and earth (idiom)

2 fig. to change the course of events

3 to turn things around

1 lit. overturning heaven and earth (idiom); earth-shattering

2 a radical change