science subject和academic subject分别是什么意思?

Renewals subject to satisfactory academic performance是什么意思? art subject和academic subject有什么区别? 有关academic subject area whloe subject和simple subject是什么意思 十万火急!什么叫academic subject science subject包括哪些? "subject"是什么意思? “subject subject "my favorite subject is science? My favorite subject is science 英语电子邮件中的subject和date是什么意思