美[??:r??t?nd] 1 . "Stand up, please" she said in a orotund tone.
“請起立”，她用洪亮的音調說。
來自辭典例句
2 . An area disunity, is an orotund tone color that points three voice Districts different from volume.
所謂聲區不統一, 就是指三個聲區的聲音音色和音量不一樣.
來自互聯網
1.ostentatiously lofty in style;
a man given to large talk
2.(of sounds) full and rich;
orotund tones
