易混淆的单词： Humming

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It 's humming up from the base of my spine .

它从我的背脊底部往上哼唱。

He had even started humming to an improvised tune -- .

他甚至临时编了一个小调哼了起来。

A brief high-pitched buzzing or humming sound .

简短高音调的嗡嗡声或嗖嗖声。

He stumbled along , humming to himself to keep up his courage .

他跌跌撞撞地走着，小声哼哼着给自己打气。

Have heard strange humming or pulsing sounds , and you could not identify the source .

听到不能够识别来源的奇怪的嗡嗡声或脉冲式的声音。