@Kang86858653 @ErikSolheim Yes, it's called pool testing. Done in the US as well, on rare occasion when test positive rate is low.
Your English is okay. Regards.
@Kang86858653@ErikSolheim是的，这叫做池测试。在美国也做过，很少在检测阳性率低的情况下。
你的英语还可以。当做
@Kang86858653 @ErikSolheim Yes, it's called pool testing. Done in the US as well, on rare occasion when test positive rate is low.
Your English is okay. Regards.
@Kang86858653@ErikSolheim是的，这叫做池测试。在美国也做过，很少在检测阳性率低的情况下。
你的英语还可以。当做