Encara no tenim significats per a "sibilant tones".
1He knew it would not be Cabe Bedlam, not after hearing the sibilant tones.
2Mhtoon Pah bent near the Head of the Police and spoke in low, sibilant tones:
3He spoke slowly, musingly, in his huskily sibilant tones.
4"Lieutenant Jacob Keyes," the ONI agent said in sibilant tones.
5"He has been detained in China," he replied, in smooth, sibilant tones-"byaffairs of great urgency.
6"That is settled, then," said the sibilant tones.
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