cough caused by dryness

例句：

1. 1. He coughed up alungful of phlegm afterinhaling too much smoke.
   他吸入太多烟雾后咳嗽出了一肺痰。
2. 2.The dry air in the desert caused herto cough frequently.
   沙漠中的干燥空气使她经常咳嗽。
3. 3. The cough was so severe thatshe had to stay home from work fora few days.
   咳嗽非常严重，她不得不请几天假在家休息。