怎样修改这个英语句子In this war,that more than 100 countries are involved in,that more than one hundred million people are suffered from,that more than ten million persons are dead,the damage is innumerous.大概就是这个意思表达,但是不知道该怎么修改标点符号和that的使用

In this war, where more than 100 countries were involved ,more than one hundred million people sufferred a lot,more than ten million person were dead, and the damage is immense.
另外，注意以下区别：
1)应该是sufferred，而不是suffered
2)innumerous的意思是数不清的,暗含的意思应该是可数的东西
immense应该是不可数的东西，而damage是不可数的。所以用inmense更好
3)时态问题，应该用过去式；
希望对你有用。。。。。。

In this war, that more than 100 countries are involved in, more than one hundred million people are suffered from, and more than ten million people are dead, the damage is innumerous.
我觉得这样会好一点吧！

In this war, more than 100 countries are involved in that ，more than one hundred million people are suffered from that， more than ten million persons are dead, the damage is innumerous.

In this war, more than 100 countries are involved , more than one hundred million people are suffered ,more than ten million persons are dead, the damage is innumerous.

The damage of the war is innumerous,involing more than 100 countries and more than one hundred million people,killing more than ten million persons.
解题思路：！。这段话主要表达战争带来的损失，故宜开门见山，用The damage of the war is innumerous 开头，然后通过两个并列的现在分词短语，具体点明损失的情况。
2.more than 100 countries involved 和 more than one hundred million people suffered 意思相近，用involved（卷入）一词涵盖，把它们拼在一起更显得句子明快紧凑。

During this war which more than 100 countries are involved in. More than one hundred million people are suffered from the war,more than ten million persons are dead, the damage is innumerous.
第一句有介词in不能用that,你的翻译基本上没有语法错误,但是句子过长,难以看懂,所以可截成几个句子.

In this war,in which more than 100 countries are involved,which more than 100 million people have suffered from,which has killed more than 10 million people--the damage is uncountable或者The damage fr...

there were more than 100 countries involved in,where were more than one hundred million people are suffered from``