subject area
主题范围
例句与用法：
I am French by birth and a British subject by marriage.
我按出生是法国人，因结婚而成为英国公民。
How many subjects are you studying this semester?
这学期你选了几门课程？
词形变化：
名词: subjection | 动词过去式: subjected | 动词过去分词: subjected | 动词现在分词: subjecting | 动词第三人称单数: subjects |