叔叔的英文：
(informal) father's younger brother; uncle

参考例句：

A lavish uncle
出手大方的叔叔

Hamlet was avenged on his uncle
哈姆雷特向他叔叔报仇。

He glanced at the envelope and recognized his uncle's handwriting.
他瞥了一眼信封，认出了他叔叔的笔迹。

My uncle trains spots to sport fishes.
我叔叔训练斑头鸽抓鱼。

fawning on their rich uncle
巴结他们富有的叔叔

He was cradled in the house of his uncle.
他是在叔叔家中长大的。

He held himself out as my uncle.
他自称是我的叔叔。

My uncle is in poor health.
我叔叔的健康状况不佳。

His uncle instructed him in French.
他的叔叔教他法语。

This R2 unit has a bad motivator. Look!
红色的！快走呀！欧文叔叔..

informal是什么意思：
adj. 非正式的；口语体的，通俗的；不拘礼节的

Informed judgement.
有事实根据的判断。

This is an informal expression.
这是一种非正式表达法。

This is an informal word.
这是一种口语用语。

father是什么意思：
n. 父亲；先辈；创始人；神父
v. 成为父亲

Pilgrim Fathers
ph.1. (英国1620年前到达北美洲的)清教徒前辈移民

Einstein fathered relativity.
爱因斯坦创立了相对论。

My father was a man of determination.
我父亲是一个果断的人。

younger是什么意思：
[ young ]的形容词比较级

The girl in red is his younger sister.
那个穿红衣服的女孩是他妹妹。

Anne's not getting any younger.
安妮一点没有变年轻。

The younger mechanic readily fixed the car.
年轻的机修工很快地把车修好了。