关于两个定语从句修饰一个名词,求专业老师回答

several times greater than 可以用, 这个文章 语法什么都对的 就是这一段有点便扭“ to say nothing of the side effects that extensive economy brings to our life,” 这个句子的语法不对。虽然我不是专业老师可是我从小就在外国长大。 应该会比专业英文老师好吧?希望我的答案能帮你哦(*^__^*) 嘻嘻 再问： 外国不学语法,只是语料熟悉度。。所以你也不能指出哪里语法不对吧 再答： 我们是不学语法， 但是 句子开始的本来就不能用 to 然后再加上个 infinitive 啊。 但是有些 特殊情况 比如， to finish this you must complete this task 。h　或什么的再问： "to say nothing of "means "needless to say","even/much/still less","let alone"。。。etc。used after a statement to underscore that because the following next thing cannot be true or possible any more than the first thing。 再答： what in the world are you talking about about? 。_。 you just gave me quotes without any explainations O。O plus wtf is because the following next thing cannot be true anymore than the first thing ?!