Her tooth ached all night.她牙疼了一整夜。 ache在上句中作动词,表示持续性的疼痛。 ache可作名词,表示持续性的疼痛。 There were aches in his joints.他关节疼痛。 ache有时候跟某些器官合成一个单词表示某个地方的疼痛。例如: backache,背痛; earache,耳痛; to...