Definition
to become ill with pneumonia, typically due to exposure to cold or wet conditions.
罹患肺炎
She'll catch pneumonia if she goes out without a coat in this kind of weather!
如果她在这种天气下不穿外套就出门，她会得肺炎的！
He might get soaking wet and catch pneumonia.
他可能会全身湿透，然后得肺炎。
You could easily get pneumonia if you swam in this lake.
如果你在这个湖里游泳，很容易得肺炎。