研究人员以两种剂量的药物对每只小鼠进行测试：每公斤体重0.3毫克以及1毫克。

The researchers actually tested each rat with two different doses: 0.3 milligrams for every kilogram of weight (the rats averaged about 250 milligrams), and 1 mg per kg.

youdao

研究人员以两种剂量的药物对每只小鼠进行测试：每公斤体重0.3毫克以及1毫克。

The researchers actually tested each rat with two different doses: 0.3 milligrams for every kilogram of weight (the rats averaged about 250 milligrams), and 1 mg per kg.

youdao