谁能帮我讲解下这个蛋疼的英语句子.

Almost immediately he began to complain about the weather ,for even though it was still summer ,it rained continually and it was often bitterlly cold 。句意是：几乎很快地,他开始抱怨天气,因为即使那时候是在夏天,（由于）经常不停地下雨,天气也会有点冷。1）整个长句是一个从句（也叫复合句,由多个简单句组成）,从句有主句部分和从句部分主句是Almost immediately he began to complain about the weather for even though it was still summer ,it rained continually and it was often bitterlly cold是从句部分,且是原因状语从句for的搭配常常是for+原因,所以for常常引导原因状语从句2 ) 在for even though it was still summer ,it rained continually and it was often bitterlly cold 这个原因。状语从句中又包含了一个让步状语从句“even though it was still summer 。” （even though ,even if ,though 这一类表示 假设、转折的词语常常接状语从句的）注：这个长长的句子是挺复杂的,它是从句中包含了从句关于从句的语法是高中和大学语法的重点,建议你多学习一下关于从句的语法,考试经常考的。