back.ache
backache的音标和读音:DJ音标发音: [ˈbækˌeik]KK音标发音: [ˈbækˌek]
backache的词性:n.(名词)
1. Discomfort or a pain in the region of the back or spine.背疼:后背或脊柱的某部分的疼痛或不舒服