1、That's because variables specified in a closure's use keyword are lexically scoped.
這是因為在closure的關鍵字use中指定的變量在詞法上確定范圍。

2、Derivational affix modifies the word lexically which can be divided into prefix, infix and suffix.
詞綴是一種附加語素，表示詞匯意義?？煞譃榍熬Y、中綴和后綴。

3、Lexically scoped variables refer to the local environment in which they were defined.
在詞法上確定范圍是指在本地環(huán)境中定義變量。