Dan Xin has been playing a crossword puzzle all his life.

Dan Xin went to the Whitehead Puzzle and played a crossword puzzle.

Add "a little" to the center of the word "Dan" and combine it with "Whitehead" to form the word "boat". Zhou (pinyin: zh \u) is a kind of word (commonly used word) in the General Standard of Chinese. This word first appeared in Shang Oracle Bone Inscriptions and Shang inscriptions. Its ancient glyph is like a boat, and its original meaning is boat. In ancient books, it can also be used flexibly as a verb, referring to crossing a river or carrying it by ship.