名詞 peacock:

1. European butterfly having reddish-brown wings each marked with a purple eyespot
   同義詞：peacock butterfly, Inachis io
2. male peafowl; having a crested head and very large fanlike tail marked with iridescent eyes or spots

1. The sparrow is sorry for the peacock at the burden of its tail.
   麻雀看見(jiàn)孔雀負(fù)擔(dān)著它的翎尾，替它擔(dān)憂。
2. Children shout when they see the peacock spread his gorgeous tail.
   當(dāng)孔雀展現(xiàn)它華麗的尾巴時(shí)，孩子們大聲叫著。
3. He strutted in front of me like a peacock.
   他像一只驕傲的孔雀一樣在我前面趾高氣揚(yáng)地走著。
4. Peacocks are more beautiful than peahens.
   雄孔雀要比雌孔雀漂亮。

pea.cock

n.（名詞）

A male peafowl, distinguished by its crested head, brilliant blue or green plumage, and long modified back feathers that are marked with iridescent eyelike spots and that can be spread in a fanlike form.
雄孔雀：雄性孔雀，具有頭冠，明麗的藍(lán)色或綠色羽毛，長(zhǎng)長(zhǎng)的裝飾性后羽，帶有眼狀的彩虹般的花斑，可展成扇形
A peafowl, either male or female.
孔雀：孔雀，雄性的或雌性的孔雀
A vain person; a dandy.
虛榮的人；愛(ài)炫耀的人
v.intr.（不及物動(dòng)詞）
pea.cocked,pea.cock.ing,pea.cocks
To strut about like a peacock; exhibit oneself vainly.
招搖，裝模作樣地走：像孔雀那樣大搖大擺地走動(dòng)；神氣十足

來(lái)源：
Middle English pocock, pecok
中古英語(yǔ) pocock, pecok
po [peacock] from Old English pawa, pôa [peafowl] from Latin p3vô [peacock]
po [孔雀] 源自 古英語(yǔ) pawa, pôa [孔雀] 源自 拉丁語(yǔ) p3vô [孔雀]
Middle English cok * see cock
中古英語(yǔ) cok *參見(jiàn) cock

【引伸】
pea.cock.ish 或
pea.cock.y
adj.（形容詞）