in our opinion的opinion可以加s吗大神们帮帮忙

in our opinion的opinion可以加s吗大神们帮帮忙 "in my opinion"中的opinion可以加s吗 in my opinion 中opinion要加s吗 为什么in their opinion中的opinion不加s? in their opinion opinion后是否加s 哪位能肯定的回答in their opinion后加s吗? 关于in one’s opinion in one's opinion=? in one’s opinion是什么意思? in one's opinion中的opinion加不加s opinion 问一下哪种表达是对的：A.in our opinion B.in our opinions