Correct
私底下
/ sīdǐxia /
Strokes
Definition
privately/secretly/confidentially
Example
As an Adverb
in private/secret/confidence; privately; secretly
1
Wǒ
我
xiǎng
想
hé
和
tā
他
sīdǐxia
私底下
tántán
谈谈
。
I wish to talk with him privately. /I wish to talk with him in private.
2
Nā
那
shì
是
biéren
别人
sīdǐxia
私底下
gàosù
告诉
wǒ
我
de
的
。
I was told about that matter in secret.
3
Zài
在
sīdǐxia
私底下
shuō
说
huàihuà
坏话
speak ill of sb behind one's back
4
Sīdǐxia
私底下
tiáojiě
调解
mediate in private