Maybe the scan is not accurate, the words are not recognized or there is no internet access. A Lang's translation pen is suitable for primary and secondary school students, mainly used for word translation.

Dictionary pen integrates English-Chinese dictionary, translator, tape recorder and learning machine. It has many functions and many advantages. A Lang dictionary pen S series has a relatively large vocabulary, 1000+, which covers all kinds of grammar learning from kindergarten to university, and can query knowledge points such as classical Chinese, encyclopedia of knowledge, English and ancient poems. With AI 1 intelligence, listening practice, oral assessment, phonetic transcription, Chinese-English translation, tracking and comparison, video teaching and other functions, children can better master knowledge and improve learning efficiency.