cost cost cost 价值（若干）；花（多少钱）
cut cut cut 切；割；削；剪
hit hit hit 打击；碰撞
hurt hurt hurt （身体部位）感到疼痛；（使）受伤
let let let 允许；让
put put put 放；摆；装
read read /e/ read /e/ 读；阅读
shut shut shut 关上（门、盖、窗户等）
must must must必须