burbling
['bɜ:blɪŋ]
n.
气流分离，起泡，附面层分离;
v.
（流水）发汩汩声( burble的现在分词 );
（婴孩般）咿呀学语;
嘟囔;
窃笑;
例句:
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What's he burbling about?
他在嘟囔些啥？
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Misty mountains, burbling brooks, pecking chickens and scampering dogs.
山色空朦,溪水潺潺, 鸡儿啄食,狗儿撒欢.
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The pigeons kept on burbling softly.
鸽子继续咕咕软语.
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There are more burbling analogue synth sounds and the mix is sparser, relying on the bass to carry you through.
来自BBC
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But whenever I asked more devoted skiers, they kept burbling on about the snow the snow!
来自THETIMES
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He was witty, burbling, could do music, poetry, but couldn't make a living.
来自NEWYORKER