hummed 是动词 hum 的过去式/过去分词,常见意思是:
/hʌmd/(hum 的原形:/hʌm/)
She hummed softly while washing the dishes.
她洗碗时轻轻地哼着小调。
As the train rattled through the night, he hummed an old tune to calm his nerves, trying not to wake anyone.
火车在夜里隆隆驶过时,他哼着一支老曲子让自己镇定下来,尽量不吵醒任何人。
hum 属于拟声词(onomatopoeia),模仿人轻声哼唱或昆虫、机器发出的“嗡嗡”声;在中古英语时期已常见,后来自然发展出 hummed 这一过去式形式。