a drumming in the ears的用法和樣例：
例句
用作名詞 (n.)
- A ringing of the ears is very unpleasant and is sometimes the precursor of deafness.
耳鳴很不舒服，有時這是耳聾的征兆。 - The leaf extract has long been used to treat a variety of ailments and conditions, including asthma, bronchitis, fatigue, dementia, poor circulation, and ringing in the ears.
銀杏葉的提煉已經很久用于治療各種疾病和不適，包括哮喘，支氣管炎，疲勞，癡呆，血液循環不暢，和耳鳴。
