pig：
n. 猪猪肉
vi. 生小猪像猪一样过活
n. 警察（俚语，带有攻击性）
The pigs were grubbing about among the trees .猪在树丛间到处乱拱。
The pigs were grubbing around for roots .猪在到处拱土找植物根吃。
Pig nutrition is a financial exercise .猪的营养是种财务上的支出。
He is a farmer and raises pigs and chickens ..他是个农民，养活猪和鸡。
He prodded at the pig with his walking-stick .他用手杖推那口猪。
piglet：
n. 小猪（尤指乳猪）
Roasted piglet of this restaurant is very famous.
这家餐厅的烤乳猪非常有名。
