1. The current inland small class vocal education commonly depends on traditional omnifarious breathing and vocalizing training that usually based on the teacher's subjective experience. 目前国内的声乐教学以小课为主，依赖于传统的、五花八门的、通常基于教师主观经验的呼吸发声训练，师生对于歌唱的机理和心理的系统了解不够。
2. After a week, he could put one animal alone in the chamber and, anticipating its upcoming play session, it would become "very active, vocalizing, and pacing back and forth with excitement." 一星期后，他又把一只实验鼠单独放在“房子”里，期待着马上就可以再好好地玩上一段时间的实验鼠变得“非常活跃，它不断地发出叫声并且兴奋地来回跑动。”
