1、意思
To continue to be in the same state or condition 及物动词 & 系动词
2、=be
Remain 强调状态的稳定性或持续性
+un开头的形容词（unclear,unchanged,unanswered,unproven)
+名词 secret, enigma
3、例句
Whether the actor killed himself or was murdered remains a secret.
It remains unknown whether the actor killed himself or was murdered.
4、翻译
Mid-autumn Festival remians one of the most faverite festival in China
5、I have beeen working in Hangzhou since last month, whether I will stay here or not remains unclear.
