"He'll have to go on a diet," Ballard quipped.“他得减肥啦，”巴拉德俏皮地说。Yes. You should go on a diet.是的,您应当节食.You must go on a diet because you are too fat.你必须限定饮食因为你太胖了....

go on a diet的音标：go on a diet的英式发音音标为：[ɡəu ɔn ə 'daiət]go on a diet的美式发音音标为：[ɡo ɑn e 'daɪɪt]...

用规定食谱，节食...