Correct
了如指掌
/ le rú zhǐ zhǎng /
Strokes
Definition
to know sth like the back of one's hand (idiom)/to know (a person, a place etc) inside out
Example
Definition
know sb/sth like the palm/back of one's hand; know/read sb/sth like a book; have sth at one's fingertips; have a thorough knowledge (of); know thoroughly
1
Zhè
这
běn
本
jiàocái
教材
de
的
nèiróng
内容
,
tā
他
lerúzhǐzhǎng
了如指掌
。
He is very familiar with what is in this textbook.
2
Wǒmen
我们
duì
对
shuāngfāng
双方
de
的
shílì
实力
lerúzhǐzhǎng
了如指掌
。
We know the strengths and weaknesses of both sides like the palm of our hand.
3
Tā
她
duì
对
dāngdì
当地
de
的
qíngkuàng
情况
lerúzhǐzhǎng
了如指掌
。
She knows the place very well.
4
Tā
他
duì
对
wǒ
我
lerúzhǐzhǎng
了如指掌
。
He could read me like a book.