petrovsky

petrovsky

美 　英

• 網絡佩特羅夫斯基；彼得洛夫斯基鎮

例句

Petrovsky said it would be six to eight weeks before results would verify whether a vaccine was effective.

彼得羅夫斯基說，他們尚需6到8個星期才能檢驗出疫苗是否有效。