### Chinese: 这3人都是学生，本月初从国外旅行回来，由于均为轻症，并未入院治疗。
### English: All three students came back from a trip abroad at the beginning of this month, and they were not hospitalized because they were all <v>mild</v>.

### Improved English: All of the 3 infected people were students who came back after traveling in other countries at the beginning of this month; all of them were not hospitalized because they were mild cases.
