Digital signature
[计] 数字签名
🧩 词语组成解析
🗣️ 情景例句
His studies advanced steadily.
他的学业不断进步。
Thank you for your help.
谢谢您的帮助。
Before long, the noise dropped completely and the boat began to drift gently across the water.
没过多久，噪音便彻底消失，快艇开始在水面上慢悠悠地漂流。