Theme song
主题歌, 信号曲, 套话
📖 牛津释义
theme song
(also `theme tune),
(a) melody that is often repeated in a musical play, film, etc （音乐剧、电影等中的）主题曲, 主题歌.
(b) = signature tune (signature).
🧩 词语组成解析
theme
[θim]
n. [乐]主题;主旋律;题目，话题;（学生的）作文;
adj. 以奇想主题布置的;
song
[sɔŋ]
n. 歌曲;歌唱（艺术）;诗歌，韵文;鸟叫声，鸟语;
🗣️ 情景例句
The price includes mailing costs.
这价格包括邮寄费用。
Custom rules the law.
习俗影响法律。
After taking off, we were flying low over the city and slowly gaining height,
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。