be on the same/a different wavelengthinformalSAMEDIFFERENT to have the same or different opinions and feelings as someone else 〔与他人的观点、感情〕相投/不合 Dad is just on a different wavelength from me. 爸爸和我就是没有共同语言。
→ be on the same/a different wavelength at wavelength(1)