如果测试结果是阴性的，但是，人们可能想要过段时间再测一次。
If the test result is negative, though, people may want to get retested again later.
youdao
他说，我们已经做了现有的所有测试，结果都是阴性。
He said, we hae done every test available and the results are all negative.
染色体和病毒测试结果阴性。
The karyotype and viral test were negative.
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