题目内容：

Which letter goes all round Great Britain?
Please fast as soon as possible,I need this answer.Please tell me today.Thank you.
是Which letter of alphabet goes all round Great Britain？顺便问一问What is it that goes up but never goes down？

优质解答

C
sea的谐音.英国是个岛国.
What is it that goes up but never goes down?
age:岁数