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1. "I'm afraid he's ill." — "I'm sorry to hear that."

“恐怕他生病了。”——“真是遗憾。”

2. Her daughters visited him from time to time when he was ill.

他生病的时候她的女儿们时常去探望他。

3. She was so ill that she was put on a respirator.

她病得很严重，被戴上了人工呼吸器。

4. An employer can demand written certification that the relative is really ill.

雇主可以要求出具书面证明，证实员工的亲人确实病了。

5. These various complaints are part of a continuum of ill-health.

这些各种各样的疾病、不适都是身体健康状况欠佳的一种表现。