问题描述：
高中英语句子帮忙分析哈
我预习时的难点：
1.Trade and curiosity have often formed the foundation for mankind's greatest endeavour.
2.The Arabic contacts to the African coast led to the next meeting between black people and a Chinese.
3.It was a major development that the Africans were reaching out to China.
1.我搞不懂formed the foundation for 是什么含义,FOR又是什么用法啊?
2.LED是一个定语从句吗?
我预习时的难点：
1.Trade and curiosity have often formed the foundation for mankind's greatest endeavour.
2.The Arabic contacts to the African coast led to the next meeting between black people and a Chinese.
3.It was a major development that the Africans were reaching out to China.
1.我搞不懂formed the foundation for 是什么含义,FOR又是什么用法啊?
2.LED是一个定语从句吗?
问题解答：
我来补答展开全文阅读