After they've been frozen and thawed of course, they don't seem quite as vocal.

在经历了冰冻和解冻的过程后，它们鸣叫的声音就不那么响亮了。

youdao

In the course of vocal music learning, it is necessary to learn the performance of vocal music and the drilling of mental activity, besides the vocal musical skill itself.

在声乐学习的过程中，除了声乐技能技巧的学习外，进行声乐的表演和心理训练也是很有必要的。

youdao

With success, of course, the vocal pressures suddenly change.

成名后当然歌唱压力也突然不同了。

youdao

As they report in the Proceedings of the National Academy of Sciences, they videotaped the animals' behaviour for several hundred hours over the course of 16 months in order to record three things: facial and vocal expressions, hand and foot gestures, and the behavioural context in which these expressions and gestures took place (eg, grooming, play, sex and aggression).

ECONOMIST: Evidence that the first words were movements, not sounds