Under normal circumstances, talk to user-friendly, giving each other a pleasant feeling as good, too dirty or too high-tone tend to hinder the individual's image.
一般情况下，谈话以通俗易懂、给对方以愉快的感觉为好，过分卑下或者过分高腔调都有碍个人的形象。
2
It began with a study one of them did on a dolphin, who had been trained to recognize a particular high-pitched tone.
首先，他们中的一个人对海豚做了一项研究，训练它识别一种特殊的高音。
3
Daddy with a high falling tone means "There's daddy".