forefinger的用法和樣例：
例句
用作名詞 (n.)
- He dips his forefinger into the liquid.
他將食指浸到液體里。 - Our foreman, Mr. Li Ming, met an accident on July6. He crushed his forefinger when operating a machine.
我廠領班李明先生在7月6日遇到意外，李先生開動機器時食指被壓。
