How many fingers do you have? 怎么回答？finger 是哪几个手指？

10 fingers.

thumb 大拇指
forefinger食指，也叫index finger
middle finger中指
ring finger无名指
little finger小拇指

10 fingers.

thumb 大拇指
forefinger食指
middle finger中指
ring finger无名指
little finger小拇指

thumb 拇指
forefinger, index finger 食指
middle finger 中指
ring finger 无名指
little finger 小指

finger 泛指手指，所以答案为“I have ten fingers."
thumb 拇指
forefinger/index finger 食指
middle finger 中指
ring finger 无名指
little finger 小指

10
finger就指手指

How many fingers do you have?
意思是: 你有多少手指? 应回答:I have ten (fingers).
大拇指: thumb
食指: index finger or forefinger
中指: middle finger
无名指: ring finger
小拇指: little finger(英)
pinkie finger or pinky finger(北美)
指甲: nail
手腕: wrist
指关节: knuckle
手掌: palm