周璇正在紧张而兴奋地工作着。
当选我做主持人的时候，我感到很高兴。那是令人兴奋的事，但我也会因电视镜头而紧张。
I felt very happy when I was chosen to be the host. It was exciting, but I was also very nervous because of the TV cameras.
我从未尝试过热瑜伽，所以我是既兴奋又紧张的，而现在我已经爱上热瑜伽了！
I had never tried hot yoga before so I was excited and nervous to try, now I'm addicted to hot yoga!
旷场分析实验中后牙拔除组大鼠对新环境的适应性和空间认知能力差于对照组，而兴奋性和紧张度要高于对照组（P<0.05）。
In open field test, the exploratory activity and spatial cognitive activity of them reduced, but, the excitability and tensity increased( P<0. 05).
但是，由于缺少经验，一些运动员在赛前过于兴奋或紧张，有些人甚至因此而受伤。
But due to lack of experience, some of them became too excited or nervous before the games begin, others even got injured.
肾素-血管紧张素系统作用机制的第一步是肾近球细胞受到低血压、交感神经兴奋、低血容量及低钠流量的刺激而分泌肾素。
The first step in the RAS cascade is the secretion of the enzyme renin by renal juxtaglomerular cells in response to low blood pressure, sympathetic activation, hypovolemia, and low sodium flux.
肾素-血管紧张素系统作用机制的第一步是肾近球细胞受到低血压、交感神经兴奋、低血容量及低钠流量的刺激而分泌肾素。
The first step in the RAS cascade is the secretion of the enzyme renin by renal juxtaglomerular cells in response to low blood pressure, sympathetic activation, hypovolemia, and low sodium flux.
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