湿度传感器由 和 组成

拉手风琴吗 Can you the for me 3．我祖母十岁时就成为一名滑冰冠军。 My grandmother became a when she was ten. 4．要下雨了，请随身带把伞。 It’s going to rain outside. Please an umbrella you. 5．昨天我从学校图书馆借了一本关于电脑方面的书。 I borrowed a book computer the school library yesterday.