这几天天气时常变化，大家也要注意添减衣服，小心感冒。
This is several to annoy to often change every day, everyone also wants to notice to add to reduce clothes, being careful a cold.
昨天不小心感冒了，到现在一直很难过，感冒的滋味真不好受。
Carelessly I catched a cold yesterday, until now I have been painful for a long time. The sense of the cold is really uncomfortable.
小心染上流行性感冒。
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