“食指”怎么读

弗兰妮把食指放在嘴唇上让她安静。Frannie shushed her with a forefinger to the lips.他用拇指和食指捏着笔。He took the pen between his thumb and forefinger.他的食指扣住扳机,然后又松开了.His index finger tightened on the trigger but then relaxed again....

“食指”的英语可以翻译为：index finger，forefinger，index，first finger ...