英语造句Stopwatch Thermometer Microscope Balance这四个词 用Hypothesis

◆If I use a stopwatch to check my pulse , and I fonded it is 18 times in 15 seconds, I can figure out my pulse frequency is 72 times per second. 假如我用秒表测我脉搏跳动的次数，发现在15秒之内跳动了18次，就可以算出我脉搏的频率是72次/秒。 ◆If one's temperature more than 38 degrees（ c suggests） that means someone is sick. I tested his temperature was 39 degrees, so that he was ill. 如果体温超过38度就提示某人生病了。我测试了他的体温是39度，所以断定他生病了。 ◆If presence of bacteria in water, drink will get sick. I observed with a microscope there are bacteria in this glass of water, so can't drink this glass of water. 如果水中有细菌存在，人喝了就会生病。我用显微镜观察到这杯水中有细菌存在，所以这杯水不能饮用。 ◆If the object weight is equal on both sides of the balance, it will be in a state of balance. I put an apple in both sides of the balance respectively, and founded it tilted, it shoes that these two apples are not the same heavy. 如果天平两边的物体重量是相等的，它就会处于平衡状态。我在天平两边分别放了一个苹果，发现天平倾斜了，这就证明这两个苹果不一样重。