Yak-141

He yakked on endlessly about his wife.

关妻子, 喋喋不休地说个没完。

The jokes get yaks.

那笑话引人发笑。

Only because yak is living in remote area and oxherd, with low knowledge,  has less communication with outside world , the yak is less heard and popular as sheep and milk cow.

只因牛栖息在偏远地区，养畜牛牧民又甚少与外界接触，知识水平都普遍低下，以致牛经济价值不及牛般广为人知。