零摄氏度的空气
问号英语怎的读法为：[ˈkwestʃən][mɑːk]。
问号英语单词为：question mark；读法为：[ˈkwestʃən][mɑːk]；例如：These question marks are not the string yet right?这些问号还不是那个字符串，对不？
例句
1、他在队中的前途还是个大问号。
There's still a big question mark hanging over his future with the team.
2、老年保健医学的未来是一个问号。
There is a question mark over the future of geriatric care.
3、他的未来肯定会有很多问号。
There are bound to be question marks over his future.
4、谁发明了问号？
Who invented the question mark?
5、每一个句子都以句号或问号结尾。
Every sentence ends with a full stop or question mark.
