Correct
骨子里
/ gǔzilǐ /
Strokes
Definition
beneath the surface/fundamentally/at the deepest level
Example
As a Noun
in one's heart of hearts; at heart
1
Tā
他
gǔzilǐ
骨子里
háishi
还是
yī
一
wèi
位
kěài
可爱
de
的
nóngmín
农民
。
He is still a lovely farmer at heart.
2
Cóng
从
gǔzilǐ
骨子里
qiáobùqǐ
瞧不起
look down upon sb in one's heart of hearts
As a Noun
personal; private
3
Zhè
这
shì
是
tāmen
他们
gǔzilǐ
骨子里
de
的
shì
事
。
It's their private affair.