You use incidentally to introduce a point which is not directly relevant to what you are saying, often a question or extra information that you have just thought of.
例句
'I didn't ask you to come. Incidentally, why have you come?'“我沒有叫你來。順便問一下,你為什么過來?”The tower, incidentally, dates from the twelfth century.那座塔,順便提一下,可以追溯到 12 世紀(jì)。
ADV
附帶地;伴隨地
If something occurs only incidentally, it is less important than another thing or is not a major part of it.
例句
The letter mentioned my great-aunt and uncle only incidentally.信中僅附帶提到了我的姑奶奶和叔叔。
英漢詞典釋義
adv.
順便提一句
Incidentally, I think you still owe me some money.順便說一句, 我想你還欠我一些錢。
英英詞典釋義
Adverb
1. introducing a different topic;
"by the way, I won't go to the party"
2. in an incidental manner;
"these magnificent achievements were only incidentally influenced by Oriental models"
3. by the way;
"apropos, can you lend me some money for the weekend?"