Barney : Hi that's not a mastodon, its Fred singing.是什么意思？

Barney : Hi that's not a mastodon, its Fred singing.

那可不是乳齿象, 是弗雷德在唱歌.

barney

n. 大吵大闹，小矿车；

例句
He heaved Barney to his feet...
他拉巴尼站了起来。

hi

int. （用作问候语）嘿，喂；abbr. 夏威夷群岛的书面缩写，（=high intensity）高强度；

例句
Oh, hi there. You must be Sidney.
喂，你好。你一定是西德尼吧。

not

adv. 不，[用以表示否定、否认、拒绝、禁止等]不是，几乎不，未必，没有[用于否定后面的词或短语]；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

mastodon

n. 乳齿象，庞然大物；

例句
Okay , now the Mastodon is from the semi - late Jurassic period.
接下来这头乳齿象是来自侏罗纪中后期.

its

pron. (it的所有格形式)它的，厥；

例句
The government is to accelerate its privatisation programme.
政府将加快其私有化计划的进程。

Fred

abbr. figure-reader electronic device 图像读取器设备；

例句
But Fred was bored and desired to go home...
但弗雷德觉得很无聊，想要回家。

singing

n. 唱歌，鸟鸣，<物，无>振鸣，（机器或系统）技术先进；v. 唱，歌唱(sing的现在分词)，（鸟）鸣，嗡嗡叫，呜呜作响；adj. 唱歌的，音乐般的；

例句
She loved singing as a child and started vocal training at 12.
她从小就喜欢唱歌，12岁开始了声乐训练。