4.américano：美式咖啡
“美式咖啡”(英文：Americano，意大利语：Caffè Americano)咖啡的一种，是最普通的咖啡。是使用滴滤式咖啡壶、虹吸壶、法压壶之类的器具所制作出的黑咖啡，又或者是意式浓缩中加入大量的水制成。口味比较淡。因为萃取时间长，所以咖啡因含量高。
Caffè Americano, or Americano (English: American coffee) is a style of coffee prepared by adding hot water to espresso, giving it a similar strength to, but different flavor from, regular drip coffee. The strength of an Americano varies with the number of shots of espresso and the amount of water added. The name is also spelled with varying capitalization and use of diacritics: e.g. Café Américano – a hyperforeignism using the French word for coffee and the Italian word for American, but with the correct French accent - café Americano, cafe americano, etc.
In the United States, "Americano" is used broadly to mean combining hot water and espresso in either order, but in a narrower definition it refers to adding water to espresso (espresso on the bottom), while adding espresso to water (espresso on the top) is instead referred to as a long black.
