他用拇指和食指夹起笔。
用拇指和食指的之隙挤捏它。
操作碱式滴定管是用拇指和食指。
The basic buret is usually operated bY thumb and forefinger.
把绒线绕过你的大拇指和食指。
为什么要拇指和食指一起？
它可以使你的拇指和食指很容易的接触。
This makes it easier to snap with your thumb and index finger.
用拇指和食指紧握原表，在垂直向上拉。
那是指你拇指和食指能捏起的盐的数量。
It is the amount of salt you can pick up between your thumb and your index finger.
交替地使用拇指和食指。
他用拇指和食指捏着它。
拇指和食指形成圈状。
手势：拇指和食指围成一个圈，其他手指朝上。
Gesture: make a circle with your finger and thumb and fingers raised up.
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。
她伸手捻抓，然后用疑惑的表情打量着自己那空空如也的拇指和食指。
She grabbed at it, then studied her empty thumb and forefinger with a puzzled expression.
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.
把拇指紧挨着你的食指，你能用得了筷子和勺子吗？
If you keep your thumb close to your forefinger, could you use chopsticks and spoons?
把拇指紧挨着你的食指，你能用得了筷子和勺子吗？
If you keep your thumb close to your forefinger, could you use chopsticks and spoons?
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