ch to distinguish it from the symmetrical ethylene, ch2

listen to the pronunciation of ch to distinguish it from the symmetrical ethylene, ch2
Английский Язык - Английский Язык
ethylidene
ch to distinguish it from the symmetrical ethylene, ch2

    Расстановка переносов

    ch to dis·tin·guish it from the sym·met·ri·cal ethylene, ch2
Избранное