v.哼(曲子)，发嗡嗡声，活跃，繁忙
hum的现在分词

原形：hum第三人称单数：hums过去式：hummed过去分词：hummed现在分词：humming

Their factories hum to the rhythm of robot assembly arms.
他们的工厂里轰鸣着机器人装配臂的节奏声。
His shoes hum terribly.
他的鞋子发出刺鼻的臭味。
The room was really humming last night.
昨晚房间里一片乱哄哄的。
Hummingbirds are the only birds that can hover in mid-air by flapping their wings up to 80 times per second, creating a humming sound.
蜂鸟是唯一能通过每秒振动翅膀高达80次来在空中悬停的鸟类，发出嗡嗡声。
The old grandfather sat quietly, humming an old folk tune as he knitted a scarf.
老祖父静静地坐着，一边哼唱着古老的民谣，一边编织围巾。
The bees hummed busily around the colorful flowers in the garden.
蜜蜂们在花园里忙碌地嗡嗡叫着，围绕着五彩斑斓的花朵。
She hummed a happy tune while preparing breakfast for her family.
她在为家人准备早餐时，愉快地哼着歌。
The fridge hummed softly in the background, indicating a steady supply of cold drinks.
冰箱在后台发出微弱的嗡嗡声，说明冰箱里冷饮充足。
The airplane's engines hummed loudly as it took off from the runway.
飞机起飞时，发动机发出低沉的轰鸣声。
In the quiet library, the only sound was the occasional soft hum of the air conditioning.
在安静的图书馆里，唯一的声音就是空调偶尔发出的嗡嗡声。
He likes to work out in the gym, often listening to music that matches his workout pace, humming along.
他喜欢在健身房锻炼，经常听与运动节奏相匹配的音乐，边锻炼边哼唱。
The baby fell asleep, her little lips gently moving as she hummed in her dreams.
婴儿睡着了，小嘴轻轻蠕动，梦中发出轻柔的哼唱声。
The wind was so strong that it caused the branches of the trees to hum with each gust.
风太大了，吹得树枝每阵都发出嗡嗡声。