A wavelength is the distance between a part of a wave of energy such as light or sound and the next similar part.
双语例句
例：
Sunlight consists of different wavelengths of radiation.
阳光由几种不同波长的射线组成。
2.?[C 可数名词] （广播的）波段
A wavelength is the size of radio wave that a particular radio station uses to broadcast its programmes.
双语例句
例：
She found the wavelength of their broadcasts, and left the radio tuned to their station.
她找到了他们广播的波段，把收音机调到那个位置收听他们电台的节目。
PHRASE. 习语
on the same wavelength
1.?志趣相投
If two people are on the same wavelength, they find it easy to understand each other and they tend to agree, because they share similar interests or opinions.
双语例句
例：
We could complete each other's sentences because we were on the same wavelength.