Correct

莫明其妙

/ mò míng qí miào /
Strokes

Example

Definition

baffling; perplexing; bewildering; puzzling; baffled; perplexed; puzzled

1
gǎndào
感到
míngmiào
莫明其妙
  
,
zěnme
怎么
jìngrán
竟然
zuòchū
做出
zhèyàng
这样
de
shì
  

It beats me how he could have done that.

2
biànhuàn
变幻莫测
de
qíng
情绪
  
,
zǒngshì
总是
líng
men
我们
míngmiào
莫明其妙
  

His changing moods often baffled us.