Invalidated bonds
[经] 宣告无效的债券
🧩 词语组成解析
v. 使无效( invalidate的过去式和过去分词 ); 使作废; 证明…错误; 使站不住脚
n. 镣铐, 监禁
🗣️ 情景例句
Unless in uniform, he doesn't look like a policeman.
除非穿上制服，要不他看起来不像警察。
There is a time to speak and a time to be silent.
该说话时说话，该沈默时沈默。
They can have only five guesses.
他们只能猜五次。