cheerer n. 欢呼者;用欢呼声激励者
cheerer[ noun ]
a spectator who shouts encouragement
<noun.person>
Cheerer \Cheer"er\ (ch[=e]r"[~e]r), n.
One who cheers; one who, or that which, gladdens. ``Thou
cheerer of our days.'' --Wotton. ``Prime cheerer, light.''
--Thomson.