Steganogram
密码
🗣️ 情景例句
If the mood takes me, I'll head down the beach for an evening stroll.
如果心情不好，傍晚我会到海边散步。
Do you build sand castles when you go to the beach?
你去沙滩的时候，堆沙丘城堡了吗？
To their surprise, the precious parcel was full of stones and sand!
令他们吃惊的是，那珍贵的包裹里面装的全是石头和沙子！