Question

谁可以帮我分析一下这个句子的成分呀

He stressed that, while gross margin was better than originally forecast, the improvement was thanks to the mix of merchandise, not higher prices.

Answer 1

He (主语) stressed （谓语） that （宾语同位语）, （下为宾语从句）while gross margin was better than originally forecast, the improvement was thanks to the mix of merchandise, not higher prices.

Answer 2

这是一个长难句，现来分析一下：
This是主语：
indicates是谓语；
that there is indeed a connection between event scaling and quantile scaling
是宾语从句；
provided that在这里是连接词，意思是“假如，如果“，类似于if。
are selected的主语是peak discharges，
used for 是peak discharges的定语。
这里的than可以翻译成 是...而不是...。