那位老爷子用食指轻轻拍着方向盘。

The old man tapped the steering wheel once with his foreFingers.

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手势：用食指触摸眼睛下方。

Gesture: Touch below the eye with your index finger.

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手势：用食指指着鼻子。

Gesture: Point at your nose with your forefinger.

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女士用食指碰了碰右膝盖，大叫道，“哇，疼！”

The woman touched her right knee with her index finger and yelled, "Ow, that hurts."

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如果用一个手拿的话就意味着像iPhone一样用食指打字。

Holding it with one hand meant the same index-finger pecking you do on the iPhone.

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用拇指和食指的之隙挤捏它。

Gently squeeze it between thumb and index fingers.

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用大拇指和食指捏住耳垂温柔的向下拉，轻轻的向外呼气，重复6次。

Breathe out gently. Repeat six times.

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用拇指和食指紧握原表，在垂直向上拉。

Grasp chart with thump and forefinger and pull straight up.

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操作碱式滴定管是用拇指和食指。

The basic buret is usually operated bY thumb and forefinger.

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因此，我建议用拇指、食指和中指操作。

So I suggest that operate the basic buret with thumb, forefinger and middle finger.

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因此，我建议用拇指、食指和中指操作。

So I suggest that operate the basic buret with thumb, forefinger and middle finger.

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