### Chinese: 他说，与之相比，在上一波的德尔塔疫情中，他治疗的新冠患者“呼吸困难，血氧水平低。
### English: He said in comparison to the previous wave of the delta epidemic, he treated <v>new crown</v> patients with "breathing difficulties and low blood oxygen levels."
### Errors: There is a major accuracy/mistranslation error at "new crown" within <v></v>.

### Improved English: He said that, in comparison, the COVID-19 patients he treated in the last round of epidemic suffered from “breathing difficulties and low blood oxygen.
