In the study, researchers administered small doses of sildenafil to hamsters before adjusting the cycles of light and dark they lived in.

在这项研究中，研究者在调整仓鼠所处环境的白昼规律前，给其小剂量的昔多芬。

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When I came back, the old daddy and windbag could cause, and buy hamsters with I request... My first small animals to me - I can live together,!

我回来时，啰嗦的老爸又讲能买仓鼠的原因、又跟我讲起要求……我为了我第一种小动物——能好好的活下去，我，拼了！

youdao

When I came back, the old daddy and windbag could cause, and buy hamsters with I request... My first small animals to me - I can live together,!

我回来时，啰嗦的老爸又讲能买仓鼠的原因、又跟我讲起要求……我为了我第一种小动物——能好好的活下去，我，拼了！

youdao