The best subject
学科───subject;最───most
There's even a special subject index.───甚至有一个特别的主题索引。
Biology is my favourite subject.───生物是我最喜欢的学科。
English is my best subject.───英语是我学得最好的一门科目。
Maybe you've been interrupted or maybe you've just gone off the subject yourself and what you want to do is get back to the right topic.───也许是因为被别人打扰也许是自己不经意间就离了题，于是你想做的就是再回到话题当中来。
The at least one electrode may be attached to the subject's skin or to the subject's heart.───可以将所述至少一个电极连接到个体的皮肤或个体的心脏。
Hostile letters poured in, mostly from people who did not think the subject worth talking about. Mr Franklin took them in his stride.───威胁信随即纷至沓来（大多出自于那些认为该话题不值一提的人们），富氏却处之泰然。
He amplified on this subject.
If the subject is singular, use a singular verb.
These rules are subject to change without notice.
She has a comprehensive grasp of the subject.
What are your views on the subject?