index finger
index finger 英 [ˈindeks ˈfiŋɡə] 美 [ˈɪnˌdɛks ˈfɪŋɡɚ]
phrase. 食指
名词复数:index fingers
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- phrase. 食指
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1. She kept pointing her little index finger at my bag, as if telling me that there was a hidden trove of candy in it.
她脱口而出，就像一只饥饿的小狗盯着一根骨头那样看着我。 她一直用她的小食指指着我的包，好像是要告诉我那里藏着有糖。
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2. Boys exposed to high levels tend to have a longer ring finger relative to their index finger, while in males exposed to lower levels, the two fingers tend to be a similar length.
暴露在高水平性激素环境里的男孩，其无名指相对于他们的食指更长，而低水平环境中，这两根手指趋近于等长。
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3. In the most basic reaction-time tests, for example, the subject must react when a light goes on by lifting her index finger off a home button and immediately depressing a response button.
例如，在最基本的反应时间测试中，要求指示灯一亮，受试者的食指必须迅速离开原来所处的（键盘上的一个）键（基位键）而立即按下（按照指示灯要求作出回应的那个）回应键。
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