柯林斯词典

1. N-COUNT A wavelength is the distance between a part of a wave of energy such as light or sound and the next similar part. (光波、音波等的) 波长
Sunlight consists of different wavelengths of radiation. 阳光由波长不同的射线组成。
2. N-COUNT A wavelength is the size of radio wave that a particular radio station uses to broadcast its programmes. (广播的) 波段
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，把收音机调到他们的电台上。
3. PHRASE 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. 志趣相投
We could complete each other's sentences because we were on the same wavelength. 我们可以彼此把没说完的句子接完整，因为我们志趣相投。