polysyllabic
polygamy
The American Mormons used to practice polygamy.
polyglot
He speaks five foreign languages fluently; he's a true polyglot.
polygraph
The suspect has agreed to do a polygraph test to prove that he is innocent.The American Mormons used to practice polygamy.
美国摩门教徒从前实行一夫多妻制。
He speaks five foreign languages fluently; he's a true polyglot.
他能流利地说5种外语,真是通晓多语言的专才。
The suspect has agreed to do a polygraph test to prove that he is innocent.
嫌犯同意测谎以示清白。