adjective [原级]发嗡嗡声的；精力旺盛的
The computers were humming away. 计算机在嗡嗡作响。
noun [专属名词]哼唱
What's that tune you're humming? 你哼的是什么曲子？
verb [vt. 及物动词]嗡嗡作响（hum 的 ing 形式）
She was humming softly to herself. 她在轻声哼着曲子。
单词造句:
The computers were humming away. 计算机在嗡嗡作响。
What's that tune you're humming? 你哼的是什么曲子？
She was humming softly to herself. 她在轻声哼着曲子。