He didn't realize that he was wrong up till present moment .这里面的up有什么作用?可以不用而意思是
问题描述：
He didn't realize that he was wrong up till present moment .这里面的up有什么作用?可以不用而意思是
答
up till= up until
lz 重点是后面,哈哈~断句错了哟.然后.然后你就全明白啦