The Oxford Contemporary Dictionary has a comprehensive explanation and many supporting examples. You can also skip the query, that is, use Oxford Contemporary. You can find out how it is explained in English and Chinese. It also provides derivatives, compounds, phrases, discrimination (such changes, synonyms and antonyms), grammar and collocation.
Other unnecessary functions: 10 national dictionary (English, Chinese, Japanese, Korean, French, Italian, Dutch, Portuguese), Japanese-Chinese dictionary, Chinese-Japanese dictionary, French-Chinese dictionary, compatible with SD/MMC expansion cards,,,,
The biggest highlight of this machine is two-way (Chinese-English, English-Chinese) whole sentence translation, but I think this function needs to be improved, and the translation accuracy is not very high, which is a common problem. All machines are like this. It's too mechanical.
There is also a little power consumption, you can touch the color screen. It seems to be 2.6 inches, and I forgot to read the manual (the touch screen is very important to me, because the Hong Kong version doesn't have this kind of pinyin in Chinese mainland, so I can only write by hand, which is very fast, and the screen is not fragile, and the quality is good, but the chromaticity is not good). It is sold in Chinese mainland.
You can also record your own pronunciation and listen to your own pronunciation. Recording time is very long, a few hours.
Attached is a CD. After installation, you can download a lot of learning materials from the website of EasyLink.
Well, the price is a bit expensive. Mine was more than 3000 at that time, and now it may be around 2000. I used 10 months. (Casio seems pretty good, too. )
The above is for reference only, and the landlord compares it himself.