[ 复数 thrums 第三人称单数 thrums 现在分词 thrumming 过去式 thrummed 过去分词 thrummed ]
⑴软紫草为具花柱异长现象的多年生草本，其种群由长花柱（Pin）和短花柱（Thrum）两种花型的植株组成，两种植株在居群中发生的频率接近1：1；物候期明显受海拔高度的影响，低海拔居群较高海拔居群的萌动期、始花...
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thread and thrum 良莠掺杂地
not to care a thrum 毫不介意
thrum cap 绳头编帽
thrum mat 绳毛垫
thrum waste 了机或上机回丝
thrum-eyed 花药眼的
not care a thrum 一点也不介意
thrum flower 短花柱花
·2,447,543篇论文数据，部分数据来源于NoteExpress
V-I When something such as a machine or engine thrums, it makes a low beating sound. (机器、引擎)嗡嗡作响; 发出沉闷声
The air-conditioner thrummed.
空调嗡嗡作响。
N-COUNT/SOUND Thrum is also a noun. 嗡嗡声
...the thrum of refrigeration motors.
...制冷机低沉的嗡嗡声。
My head was going thrum thrum thrum.
我的脑袋嗡嗡嗡地响着。
V to strum rhythmically but without expression on (a musical instrument) (在乐器上有节奏但无表现力地)随意弹弄
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