Elementary course skina co ctuca lo nintadni Elementa kurso Cours élémentaire 初級講座 初级讲座 初級講座

• What does “logical language” mean? i ma smuni zoi zoi logical language zoi Kion signifas “logical language”? Que signifie « logical language » ? “logical language”是什麼意思? “logical language”是什么意思? “logical language”とはどういう意味か