both seriously ill
都病得很重
以上为机器翻译结果，长、整句建议使用 人工翻译 。
I've warned them they could get seriously ill, but they both ignore my advice.
我也警告过他们他们的身体会越来越差，但是他们都把我的话当成耳边风。
youdao
The seriously mentally ill are eligible to receive both cash and medical treatment, but many are unable or unwilling to seek the benefits to which they are entitled.
ECONOMIST: Out of sight, out of mind
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