他在报告的最后加了一个括号内的说明。

He added a ___parenthetical note at the end of the report.

她喜欢在句子中添加解释性注释，这是一种典型的插入式写作风格。

She likes to add explanatory notes in sentences, which is a typical ___parenthetical writing style.

演讲者突然插入的题外话让听众有些困惑。

The speaker's ___parenthetical remark suddenly confused the audience.