She fasts a day every week.她每周绝食一天.She fasts once every week, and she has lost ten pound.她每周绝食一次, 至今她的体重已减了十磅.He fasts one day a week for health reasons.为了健康的因素,他一周禁食一天....

fasts的音标：...

vi.禁食，（尤指）斋戒（fast的第三人称单数形式）...