noun🔗Share毫弧秒 (usually in the plural) Abbreviation of milli-arcsecond."The astronomers measured the positions of the stars with very small ma, down to less than one milli-arcsecond. "天文学家们测量了这些星星的位置,精度非常高,达到了非常小的毫弧秒级别,甚至小于一个毫弧秒。astronomymathphysicssciencespaceunitChat with AIVocabulary GamePractice Reading
noun🔗Share妈妈, 母亲 (and in direct address) mother, mama""Ma, can you help me with my homework?" "妈,你能帮我做作业吗?familypersonChat with AIVocabulary GamePractice Reading
noun🔗Share五月 May"My friend's birthday is in May. "我朋友的生日在五月。timeperiodChat with AIVocabulary GamePractice Reading