https://online1.tingclass.net/lesson/shi0529/0000/855/english_around_us_grammar_123_uncountable_nouns_428.mp3
https://image.tingclass.net/statics/js/2012
講義
不可數(shù)名詞
抽象名詞
anger, honesty, love, beauty, freedom
物質名詞
air, wind, light, fire, gold, milk, tea, beef
量詞
a piece of, a case of, a fit of, a slice of, a drop of
a bottle of, a glass of, a cup of, a can of, a carton of