| Expression | 对一组使用新药, 对另一组则使用旧药以资对照. |
|---|---|
| Meaning | One group was treated with the new drug, and a second group was treated with the old one as a control. |
| Reading | duì yī zǔ shǐ yòng xīn yào, duì lìng yī zǔ zé shǐ yòng jiù yào yǐ zī duì zhào. |
Tags: hsk4-limited2-part4
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