forefinger造句

Frannie shushed her with a forefinger to the lips.
弗兰妮把食指放在嘴唇上让她安静。

He took the pen between his thumb and forefinger.
他用拇指和食指捏着笔。

He pinched the leaf between his thumb and forefinger.
他将叶子捏在拇指和食指之间.

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