petrovskyCOCA¹⁰⁷⁵⁸⁸BNC⁷⁵⁰⁶² 基本例句 🌏佩特罗夫斯基；彼得洛夫斯基镇 Have you ever heard of that artist, Aleksandr Petrovsky? 你们听过艺术家亚力山大佩特洛夫斯基吗？ engxue It is the Petrovsky Palace. 这就是彼得罗夫斯基宫。 yeeyan Petrovsky said it would be six to eight weeks before results would verify whether a vaccine was effective. 彼得罗夫斯基说，他们尚需6到8个星期才能检验出疫苗是否有效。 yeeyan