formal protest

• 正式抗议

formal protest的用法和样例：

例句

1. They lodged a formal protest against their government.
   他们向政府提出正式抗议。
2. Seoul says the book glosses over Japan's colonial and war-time past.The South Korean government had already lodged a formal protest over the book.
   韩国政府认为日本的教科书美化了日本的殖民统治和战争历史，并已对此做出正式抗议。