be tuned in

(informal)be aware of, sensitive to, or able to understand something

(非正式)意识到；对…敏感；能理解

it's important to &B{be tuned in} to your child's needs.

理解你孩子的需要是重要的。

call the tune

it's important to &B{be tuned in} to your child's needs.

理解你孩子的需要是重要的。

change one's tune

it's important to &B{be tuned in} to your child's needs.

理解你孩子的需要是重要的。

in (或out of) tune

with correct (or incorrect) pitch or intonation

合（或不合）调

there's many a good tune played on an old fiddle

(proverb)someone's abilities do not depend on their being young

(谚)旧琴拉佳曲（指一个人的能力并不取决于他的年轻）

tune something out

exclude a sound or transmission of a particular frequency

滤波

tune something up

adjust something so that it performs at its most efficient

调整，调节（以达最佳性能）

tune in

&I{Electronics} To adjust a receiver to receive signals at a particular frequency or a particular program.

&I{【电子学】} 调整频率（以接收）：调整接收器来接收特定频率的信号或特定的节目

&I{Slang} To make or become aware or responsive

&I{【俚语】} 注意，觉察到：使或变得明白或了解

“Nobody tunes in to what anybody else is saying”(&b{Bruce Allen})

“没有人注意别的人在说什么”(&b{布鲁斯·艾伦})

tune out

&I{Electronics} To adjust a receiver so as not to receive a particular signal.

&I{【电子学】} 调出：调整接收器以不接收特定的信号

&I{Slang}

不注意；忽略

“The average reader, used to seeing the world in three-dimensional color, tunes out”(&b{Carlin Romano})

“那些习惯于以三维色彩观察世界的普通读者与环境隔绝”(&b{卡林·罗马诺})

tuned out the children's screaming.

对于孩子们的尖叫不予理睬

tune up

&I{Music} To adjust an instrument to a desired pitch or key.

&I{【音乐】} 调弦，调音：给乐器调音以达到所期望的音高或音调

To adjust a machine so as to put it into proper condition.

调节（机器等）：调整机器使其处于正常的工作状态

To prepare (oneself) for a specified activity.

热身，准备活动：为某一特殊活动做准备

to the tune of

To the sum or extent of

达…之多，共计

produced profits to the tune of about $20 million.

创利润达2亿美元之多