setter的复数形式怎么拼写？

Hammond was the early pace-setter.起初领先的是哈蒙德。She is considered a pace - setter in The corporation.她被看成全公司的标兵.Jim stopped inside the door, as immovable as a setter at the scent of quail.吉姆站在屋里的门口边, 纹丝不动地好像猎犬嗅到了鹌鹑的气味似的....

setter的音标：setter的英式发音音标为：['setə(r)]setter的美式发音音标为：['sɛtɚ]...

n.安放者，安装员，作曲者，排字者，塞特种猎狗...