1·The tip of his index finger .
她用食指触鼻尖。
2·He broke the nail on his index finger.
他弄断了食指指甲。
3·The thumbtack pricked his index finger.
大头针扎了他一下手指。
4·I don't think so, "he put his index finger in his mouth, moistened it."
“我不这么认为”，他把他的食指放入他的嘴，弄湿它。
5·Susan:He ordered1 a soda in a restaurant by holding up his index finger.
苏珊：他在餐厅伸出食指点一杯汽水。
6·When someone puts his index finger up to his lips, he is asking others to be quiet.
当有人把他的食指放到他的嘴唇上去，他是在要求别人安静。
7·Specifically, if someone's ring finger and his index finger are the same length, look out.
具体说来就是，如果某人右手的无名指和食指一样长的话，那你就得小心了。
8·Chinese table tennis player Zhang Jike put his index finger to his lips to quiet the fans.
中国乒乓球选手张继科则把食指放在嘴边让观众安静。
9·With his index finger, Paterson pointed toward a plain color-coded box a long wooden table.
用他的食指，佩特森指向一个普通颜色盒在很长一段木头桌子。
10·Lucius froze, his index finger hovering over his own Mark. Bellatrix strode out of Harry's limited line of vision.
卢修斯愣住了，食指悬在他的黑魔标记的上方。贝拉特里克斯大步走出了哈利有限的视线范围。