HSK 7-9
替补
tìbǔ动名
to replace (a damaged component with a new one, an injured player with a substitute player, full-time workers with casual workers etc); a substitute; a replacement
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.