目的：探讨消旋去甲乌药碱治疗病态窦房结综合征的作用机制。

Objective: To investigate the mechanism of higenamine in treatment of sick sinus syndrome.

youdao

甲：今天真热，我们去游泳怎么样？

A: It's scorching today. Let's go swimming, Ok?

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甲：我要花一整天的去清理那些破玩意。

X: It's going to take me all day to clean this mess up.

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甲：就是这样，我再没有脸去上班。

A: That's it! I can never show my face at work again.

youdao

你必须去专业美甲师，使您的指甲好看。

You have to go to a professional manicurist to make your nails look good.

youdao

你必须去专业美甲师，使您的指甲好看。

You have to go to a professional manicurist to make your nails look good.

youdao