In the first instance your child will be seen by an ear, nose and throat specialist.

你的孩子首先要由耳鼻喉专家诊查。

《柯林斯英汉双解大词典》

A good ear, nose and throat specialist can tell you if it is a hearing problem, and if it isn't, they can advise you what to do next.

一个好的耳鼻喉专家能告诉你，孩子不理人、不爱说话是不是因为他根本就听不见。如果不是，他能建议你下一步该做什么。

youdao

You may be referred to a specialist in ear, nose and throat (ENT) disorders (otolaryngologist) if the problem has been persisting for some time, is not responding to treatment, or has occurred frequently.

CNN: Ear infection (middle ear)

When the cough became worse Dr Kerr referred her to an ear, nose and throat specialist in November.

BBC: NEWS | UK | England | Merseyside | GP 'failed to diagnose cancer'

The ear, nose and throat specialist completed his training in the U.K. and received a green card based on his professional expertise.

WSJ: Asians Top of the Immigration Class