sewing machine的复数形式怎么写

She sewed the dresses on the sewing machine.她用缝纫机缝制了这些裙子。I have to pay 150 dollars for the sewing machine.我得花150美元买这台缝纫机.It's about time this old sewing machine was put out to pasture.这部旧缝纫机大概到了被淘汰的时候了....

sewing machine的音标：sewing machine的英式发音音标为：['səʊɪŋ mə'ʃi:n]sewing machine的美式发音音标为：['soɪŋ mə'ʃin]...

n.缝纫机，锁线装订机...