投书

Traditional form:

投書

Pinyin (reading):

tóushū

Definitions:

• to submit a written piece (letter, article, opinion piece etc)

Characters:

• 投 - to pitch, to throw; to bid, to invest
• 书 - book, letter, document; writing

Traditional characters:

• 投 - to pitch, to throw; to bid, to invest
• 書 - book, letter, document; writing