noun🔗ShareEta，Η，希腊字母Η。 The seventh letter of the Modern Greek alphabet, the eighth in Old Greek."In Greek class today, we learned that "eta" is the seventh letter in the modern Greek alphabet. "今天希腊语课上，我们学到“eta”，也就是希腊字母Η，是现代希腊语字母表的第七个字母。languagelinguisticsChat with AIVocabulary GamePractice Reading
noun🔗Shareη介子 A kind of electrically neutral meson having zero spin and isospin."The physicist, searching for new particles, analyzed the data and confirmed the presence of an eta. "这位物理学家在寻找新粒子时，分析了数据，确认了η介子的存在。physicsscienceChat with AIVocabulary GamePractice Reading
noun🔗Share部落民，贱民 A social outcast in Japan who is subjected to menial work, making up a class or caste of such people."Historically, an eta was forced to work as a butcher because of their low social status in Japan. "历史上，由于社会地位低下，日本的部落民（贱民）被迫从事屠夫之类的工作。culturesocietyhistoryracepersongroupjobChat with AIVocabulary GamePractice Reading
