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Narrator: First we heard medical studies saying that caffeine in coffee was probably bad for the heart, but recent research showed that coffee may be good for the cardiovascular system , that's left
unit 568 医治感染 dialogue 英语情景对话 A:I have the chills and an upset stomach. A:我直打冷颤,胃也痛。 B:How long have you felt like this? B:这种症状多久了? A:For most of the week. A:差不多一周了。 对抗感染 B
Using Caffeine as a Stimulant Joan: Hi, how are you? What are you doing? What is this? Roberto: Whoa! Youre very high- strung this morning. Joan: Am I? I am a little wired. Ive been up all night trying to finish an assignment for one of my classes. R
Why Is Sleep So Important? 为何睡眠如此重要? If you have sleep deficit it impacts everything you do think and act. Unfortunately a major amount of people have a large sleep deficit. 睡眠不足会影响你的一切思考和行为。不幸的