什么是副词子句

Question

什么是副词子句

Answer 1

副词子句 (adverb clauses) 提供有关主要子句「到底怎麼回事」的资讯：where,when,why."When the movie is over,we'll go downtown." 或 "John wanted to write a book because he had so much to say about the subject."
形容词子句 (adjective clauses) 的功用有如多字的形容词."My brother,
who is an engineer,figured it out for me." 或 "The bridge that collapsed in the winter storm will cost millions to replace."
名词子句 (noun clauses) 具备名词的所有功能."What he knows [主词] is no concern of mine." or "Do you know what he knows [受词]?" 或 "What can you tell me about what he has done this year [介系词 "about" 的受词]?"