subject不可以指专业。

n. 主题；起因；科目；主词；（绘画、摄影等的）题材；实验对象；主语；国民；主旋律；主体；中心实体adj. 易遭受……的；有待于……的；受……支配的；受异族统治的；臣服的adv. 在……的条件下v. （使）臣服No conjecture can be offered on the subject .关于这个问题不可臆测。She skipped from one subject to another .她讲得没有条理，东拉西扯。She began to enlarge upon the subject .他开始在这个题目上发挥起来。The export trade subjects to many risks .出口贸易常常遇到许多风险。I thought myself very rich in subjects .我觉得我已经有不少的百姓了。