名词
1. This publishing firm is planning a new series of school textbooks.
这家出版公司正打算出一套新的系列教材。
2. Then began a series of wet days that spoiled our vacation.
之后就是一连串的下雨天，把我们的假期弄得一团糟。
3. He saw a series of white arrows painted on the road.
他看见马路上画有一连串白色箭头。