It was her proud boast that she had never missed a day's work because of illness.

她所引以自豪的是她从未因病而耽误过一天工作。

《牛津词典》

youdao

It was a difficult job as Helen was unable to see, hear or speak because of illness.

这是一项很困难的工作，因为海伦身患疾病，不能看、听和说话。

youdao

Although most patients suffer only a mild illness, scores of people are being treated in hospitals and more than 45 people have died because of complications related to the flu.

VOA: standard.2009.07.24

Seventeen per cent of nursing staff there were unable to report for work because of illness.

BBC: Sinn Fein defend health minister

Jones' squad has been stripped bare because of illness and injury, but they still beat Bristol City 6-0 on Tuesday.

BBC: Cardiff City has lost out on new players - Dave Jones

Elsewhere, Newcastle striker Michael Owen and Tottenham midfielder Jermaine Jenas have withdrawn from the forthcoming friendlies because of illness and injury.

BBC: Posh keeper given England call-up