Percolumbic acid
[化] 过铌酸
🧩 词语组成解析
🗣️ 情景例句
Good-bye.
再见。
He is planning his future already.
他已经在为将来做打算了。
All those who have contributed towards the gift will sign their names in a large album which will be sent to the headmaster's home.
所有凑钱买此礼品的人都将自己的名字签在一本大签名簿上，签名簿将被送到校长的家里。