These signal words are good cues for when to take notes.
这些标志词语是该做笔记的提示。
哈利波特精彩瞬间
The Spanish translator sometimes used italics to signal an invented word with no translation.
西文译者有时候会用斜体字来提醒读者这是一个没有翻译的新造字词。
ETS官方托福教程
Listen for the signal words that indicate the introduction, major ideas, examples and the conclusion or summary.
练习时,应注意听那些表示“介绍”、“主旨”、“例子”或“总结”的标志词。
VOA Special 2020年3月合集
But note that sometimes appositives do not use the signal word " or." And be careful -- commas have many purposes in written texts and they do not always signal appositives.