Writing drills: Colleagues and teamwork: HSK 7-9 同事与合作:HSK 七至九级 写字练习
The characters that the words of Colleagues and teamwork: HSK 7-9 write for the first time in the List, a few to a drill. Each drill takes its characters from tracing them, with the next stroke shown, to writing them from memory.
5 drills over 25 characters.