hygienist的复数形式怎么写？

Did you know she worked as a dental hygienist for a Dr. Shider?你知道她在率特医生那里当口腔卫生师?By the way, how often do you go to your dental hygienist?顺便问一下, 你每隔多久看一次牙医?Your dentist or dental hygienist can show you the method that mi...

hygienist的音标：hygienist的英式发音音标为：[haɪ'dʒi:nɪst]hygienist的美式发音音标为：[haɪ'dʒiːnɪst]...

n.卫生学者...