一名即将毕业的高三学生用英语怎么说

一名即将毕业的高三学生可以用英语称为 "a senior high school student in their final year" 或 "a graduating senior high school student."

"Senior" 在这里是形容词，意思是 "advanced in years or standing"，指这个学生已经是高中的学生了。"Final year" 或 "graduating" 则指这个学生即将毕业。

例句：

"John is a senior high school student in his final year." (约翰是高三学生)
"Sara is a graduating senior high school student." (萨拉是即将毕业的高三学生)

翻译：

"John是高三的学生"
"Sara是即将毕业的高三学生"