大胆的英文：
courageous
daring
fearless

参考例句：

Very bold;presumptuous.
大胆的;狂妄的

Marked by courage or daring;plucky.
勇敢的，大胆的;有胆量的

Speak out.
大胆说出来吧

Pluck by the beard
"毅然反对,大胆攻击"

Fearless daring;intrepidity.
大胆进取的精神无所畏惧;勇猛

The children were encouraged to daub the colors in liberally.
他们鼓励孩子随意大胆地涂色。

Someday you will have to face up to your actions.
有一天你将必须大胆面对你的行为后果。

Bold or insolent heedlessness of restraints,as of those imposed by prudence,propriety,or convention.
大胆破格，创新性鲁莽或无视任何约束，如那些用慎重，规矩或传统来强加的约束

A venturesome investor.
大胆的投资者。

An audacious explorer
大胆的探险家

courageous是什么意思：
adj. 勇敢的，无畏的；有胆量的

Screw one's courage
鼓起勇气,壮起胆子出自莎士比亚《麦克白》只要你集中你的全部勇气我们决不会失败

I respect his courage.
我敬佩他的勇气。

No way is impossible to courage
勇敢面前没有通不过的路

daring是什么意思：
adj. 大胆的，勇敢的
n. 勇敢；胆量；鲁莽
v. dare的现在分词

"Dare you ask him ? No , I dare not ."
敢问他吗?不敢。

How dare you to flout at him?
你怎敢嘲弄他？

Don' t you dare sauce me!
你竟敢对我无礼！

fearless是什么意思：
adj. 大胆的，无畏的

The soldiers followed their fearless leader into the battle.
士兵们随着他们勇敢的指挥官投入战斗。

He is brave and fearless. He has the makings of an explorer.
他英勇无畏，具有探险者的气质。

The hunters were fearless when confronted with wild animals.
这些猎手面对野兽毫不畏惧。