index finger
食指
同义词
参考例子
1.Use your whole hand rather than your index finger to point . ( whatever happened to precision engineering !
用你的整个手，而不是食指来指出来。（那是发生在精确的工程学上的）
2.Place the lens on the tip of the index finger and check its shape. If the edge appears bowl shaped, it is right side out.
将镜片放置于食指指端上检查它的形态，假如镜片边缘的轮廓像一只碗的形态，就是镜片的正面朝外。
3.Please close your thumb, and then open your index finger. The finger represents brothers and sisters, they have their own family and they will leave us too).
请大家合上大姆指，再张开食指。食指代表兄弟姐妹，他们也都会有自己的家庭，也会离开我们。
英文解释
n.
1.the finger next to the thumb
网络释义
index finger
食指; 示指; 指针; 食指。;
palmar surface index finger
释义：食指掌面;
artery radial index finger
释义：食指桡侧动脉;
pushing index finger
释义：推拿指法;
extensor muscle index finger
释义：食指伸肌;