名詞 yak:

1. noisy talk
   同義詞：yack, yakety-yak, chatter, cackle
2. large long-haired wild ox of Tibet often domesticated
   同義詞：Bos grunniens

1. A domesticated yak, used as a work animal or raised for meat and milk.
   牦牛一種家用牦牛，用作干活的牲畜或為其肉和奶而飼養(yǎng)

yak

n.（名詞）
A wild, shaggy-haired ox(Bos grunniens) of the mountains of central Asia.
牦牛：一種生長在中亞山區(qū)的長毛野生牛（牦牛）
A domesticated yak, used as a work animal or raised for meat and milk.
牦牛：一種家用牦牛，用作干活的牲畜或為其肉和奶而飼養(yǎng)

來源：
Tibetan gyag
西藏 牦牛

yak
yak 2也作 yack

v.intr.（不及物動詞）
yakked 也作 yacked yak.king yack.ing yaks yacks
To talk persistently and meaninglessly; chatter.
喋喋不休：不停地講毫無意義的話；閑聊
n.（名詞）
Prolonged, sometimes senseless talk; chatter.
廢話：長的、有時毫無意義的談話；閑聊

來源：
[Imitative]
[擬聲詞]