“感叹号”的英语表达是 exclamation mark(英式英语)或 exclamation point(美式英语)。二者意思相同,在口语和书面语中均可使用,具体选择取决于地区习惯或个人偏好。例如:
Don't forget to put an exclamation mark at the end of that sentence.(别忘了在那句话末尾加一个感叹号。)
In American English, it's more common to say "exclamation point."(在美式英语中,“exclamation point”的说法更常见。)