Tom从没去过中国，但他的父母去过两次的翻译：Tom have never been to China, but his parents have been there twice 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Tom had never been to China, but his parents visited twice

Tom have never been to China, but his parents have been there twice

Tom ever has not gone to China, but his parents have gone to two times

from Tom haven't been to China, but his parents had been there twice

Tom have never been to China, but his parents have been there twice