Correct
来书
/ lái shū /
Strokes
Example
As a Verb
send a letter here
1
Lái
来
shū
书
gàozhī
告知
jìnkuàng
近况
。
Write me a letter and tell me how things are going with you.
As a Noun
your letter/epistle
2
Lái
来
shū
书
shōuxī
收悉
。
I have received your letter. / Your letter has been received.