verb🔗Share忘记, 遗忘 To undo the process of knowing, to lose knowledge of something."After the fire, the family unknown the location of their cherished photos. "火灾过后，这家人忘记了他们珍藏照片的存放地点。mindphilosophyeducationessentialChat with AIVocabulary GamePractice Reading
noun🔗Share未知数 A variable (usually x, y or z) whose value is to be found."The unknown in the math problem is the variable 'x'. "这道数学题里的未知数是变量'x'。mathessentialChat with AIVocabulary GamePractice Reading
noun🔗Share未知数，未解之谜，不得而知的事。 Any thing, place, or situation about which nothing is known; an unknown fact or piece of information."The exact location of the lost earring remains an unknown. "那只丢失的耳环的具体位置仍然是个未解之谜。thingsituationinfoabstractessentialChat with AIVocabulary GamePractice Reading
noun🔗Share无名之辈，小人物. A person of no identity; a nonentity"The unknown at the meeting caused confusion; no one recognized the person. "会议上突然出现的那个无名之辈引起了混乱，因为没人认识他。personhumancharacteressentialChat with AIVocabulary GamePractice Reading
adjective🔗Share未知的，不明的，不为人知的 (sometimes postpositive) Not known; unidentified; not well known."The new student's name was unknown to the teachers. "老师们不知道那个新学生的名字。conditionqualitystateessentialChat with AIVocabulary GamePractice Reading
