n.

1. 曲调；歌曲；旋律[C]
   Tony wrote the words of the song and Kris wrote the tune.

   托尼写歌词，克丽丝谱曲。

2. （乐器，歌声）准确的音调[U]
   The piano is out of tune.

   这钢琴走调了。

3. 和音，和谐[U]
   She has never learnt to sing in tune.

   她从未学会和着调子唱歌。

4. 协调，一致[U]
   A person out of tune with his surroundings is unhappy.

   一个与环境格格不入的人是不会快乐的。

5. （无线电等的）调谐，调音[U]
6. 腔调，语气
   She has changed her tune about children since she got married and had her own.

   自从结婚生子之后她已经改变了对孩子的论调。

7. 正常的状态（或心情）[U]
   Are you in tune for study today?

   你今天有心思学习吗？

vt.

1. 为……调音；调准……的音调[（+up）]
   He tuned his violin before he started playing.

   演奏前他先将小提琴调音。

2. 调整……的频率（或频道）[（+to）]
   Please tune the television set to Channel 5.

   请将电视机调到第五频道。

3. 使协调，使一致
   The colors are perfectly tuned to each other.

   这些颜色很协调。

4. 与……建立无线电联系
5. 调整（引擎等）
   The machine has just been tuned.

   机器刚刚调整过。

vi.

1. 发出音乐声，发声
   It's said that child could tune before it could speak.

   据说孩子在会讲话之前就会哼出调子了。

2. 协调，达到一致
3. 调谐[（+in/to）]
   We always tune in to Radio 4 to hear the 10 o'clock news.

   我们总是调到无线电四台听十点钟的新闻节目。

4. 调音，定弦[（+up）]
   The orchestra is tuning up ready to begin.

   管弦乐队正在调音，准备马上演奏。

n.

v.

1. (also tune up) adjust (a musical instrument) to the correct or uniform pitch.
2. adjust (a receiver circuit such as a radio or television) to the frequency of the required signal.
   ▸ (tune in) watch or listen to a television or radio broadcast.
3. adjust (an engine) or balance (mechanical parts) so that they run smoothly and efficiently.
   ▸ (tune something up) bring something to the most efficient condition.
4. adapt to a particular purpose or situation.
   ▸ (tune into) become sensitive to.
   ▸ (tune out) informal stop paying attention.