"a small painting by Picasso" "he bought the painting as an investment" "his pictures hang in the Louvre"
"he studied painting and sculpture for many years"
"you can finish the job of painting faster with a roller than with a brush"
"house painting was the only craft he knew"
误 Mr. Green teaches us paintings.
正 Mr. Green teaches us painting.
析painting作“绘画”或“油漆(技巧)”解时是不可数名词,作“彩色图画”解时才是可数名词。