it remains in one's mind
它留在记忆中
it remains modest and prudent
它保持谦虚谨慎
How many weeks will you remain [stay] here?
你将在此停留几个星期?
I remain yours truly [sincerely]
你永远忠实的谨上(信尾客套语)
it remains to be proved.
它尚待证明?