词汇	窦房周围
释义	窦房周围医sino-atrial circuits
随便看	I am the Living Quetzalcoatl I am the only individualist in this room I am the rightful owner of this car I am the Sea I am the seer I am the sun: So like carbon black Degen I am the very soul of discretion I Am the Wind I am the withering rose I am the wizard oz I am the youngest I am the youngest child in my family I am thinking it over I am thinking maybe we can go canoeing I am thinking over her proposal I am thirsty I am thirsty,for the sun is hot I am thirteen years old I am thirteen years old,and in seventh grade I am thirteen years old, and in seventh grade I am thirty years old I am Thomsen J I am Thomsen J,my staffs call me Jacob! I am thoroughly conversant with all the rules I am through