Of all the economically important plants, palms have been the least studied.
问题描述:
Of all the economically important plants, palms have been the least studied.
of前面省略了什么
答
没省什么!
of 在这里标范围”在.之中“
再如:
Of all the cities in China, Shanghai is the biggest.
在中国的所有城市之中,上海市是最大的.
O(∩_∩)O 认同请采纳,不懂继续问. 祝学习进步! 谢谢!