researchers had thought that it was impossible for plants to make significant amounts of the gas.for在这里怎么讲?
问题描述：
researchers had thought that it was impossible for plants to make significant amounts of the gas.
for在这里怎么讲?
答
It is impossible for sb. to do sth.意思是对某人来说做某事是不可能的。这是固定的搭配，for的意思是“对”的意思
答
for： 对于 在。。。来说
答
句子拆开看,经典句型：it‘s impossible for sb to do sth.硬要说for是什么意思的话就是：对于...的意思.
研究人员认为对于植物来说是不可能产生这么显著量的气体.