Their suppliers’ business with them is found to have been satisfactory.

问题描述:

Their suppliers’ business with them is found to have been satisfactory.
请问这里的is found to 怎么理解呢?这里found 的原型是什么呢?
有例句最好了~
这里应该有从句哦,应该怎么分解呢?

翻译:发现他们的供应商同他们的生意很令人满意.(do)business with:同...做生意be found to do:被发现在做某事.在这里直译就是被发现很令人满意,意译就是发现...令人满意.主语是business;谓语是is(found to have ...