HSK 7-9
带头
dàitóu动
to take the lead; to be the first; to set an example
班长带头参加志愿活动。
Bān zhǎng dài tóu cān jiā zhì yuàn huó dòng.
The class monitor took the lead in joining the volunteer activity.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.