Definition: a part of a subject Level: B2
人工智能是计算机科学的一个分支。
Artificial intelligence is a ___branch of computer science.
科学的每一个分支都在发生快速的创新。
Innovations are happening rapidly in every ___branch of science.
哲学是人文学科的一个重要分支。
Philosophy is a major ___branch of the humanities.
