there were no fingerprints on it.Theoretically, if Teacher Jiang locked the door before leaving home, there should be fingerprints left behind.The surface of this lock is so clean. This indicates two...ranslate the content inside >, but also keep the HTML tags.Since I don't know what language "..." is in, I can't translate it accurately. Could you please:1. **Tell me what language "..." is in** For...