Ciphergraph
[计] 密码技术
🗣️ 情景例句
Try to take it easy.
放轻松点。
None but a wise man can employ leisure well.
唯智者善于利用空闲。
When a light passenger plane flew off course some time ago, it crashed in the mountains and its pilot was killed.
不久前，一架轻型客机偏离了航线，在山区坠毁，飞行员丧生。