借题发挥翻译

英语翻译：

make use of a subject to elaborate one's own ideas

分词翻译：

借的英语翻译：

borrow; debit; lend; loan; make use of
【法】 loan

题的英语翻译：

inscribe; problem; subject; title; topic

发挥的英语翻译：

bring into play; develop; elaborate; exert; give play to