玛丽在丈夫患急性肺炎去世后。

For a living after her husband died of acute pneumonia.

儿子走后半个月，姜春阳突发急性肺炎。

Half a month after Jiang Hao's death, Jiang Chunyang came down with acute pneumonia.

重伤风可能是急性肺炎的先兆.

A severe cold may be the precursor of pneumonia.