1. He is known for his insidious behavior, always insisting on his own way even when it goes against the law.
他因其险恶的行为而闻名，即使违法也坚持己见。
2. Despite opposition from all sides, she remained insidious in her stance and refused to compromise.
尽管遭到各方的反对，她在立场上仍然坚定不移，拒绝妥协。