Acknowledge receipt
[经] 证实(承认)收到
🧩 词语组成解析
🗣️ 情景例句
that I wasn't sure.
我说我不能确定。
Old wood is best to burn,old horse to ride.
老柴好烧，老马好骑。
He's only forty-one years old, and he has already been to nearly every country in the world.
他只有41岁，但他却过世界上几乎每一个国家。