汉语翻译：
a. 有责任心的, 负责的, 本着良心的
【法】 凭良心做的, 有道德感的词型变化：
名词:conscientiousness副词:conscientiously英语解释：
形容词 conscientious:

characterized by extreme care and great effort同义词：painstaking, scrupulous

guided by or in accordance with conscience or sense of right and wrong

例句：

The janitor is very conscientious.那个管理员很认真。

He's changed into a conscientious worker.他已成为一个工作认真的人了。

We should be conscientious to our work.我们应该对工作负责。

She is a conscientious teacher.她是一个有责任心的教师。

详细解释：
con.sci.en.tious
adj.（形容词）
Guided by or in accordance with the dictates of conscience; principled:
本着良心的：由良心指引或与良心一致的；有原则的：
例句：
a conscientious decision to speak out about injustice.
本着良心决定说出不义之事
Thorough and assiduous:
负责的：周全的和勤勉的：
例句：
a conscientious worker; a conscientious effort to comply with the regulations.
谨慎的员工；全力与规定配合
来源：
Obsolete French conscientieux
已废法语 conscientieux
from Medieval Latin cônscientiôsus
源自 中世纪拉丁语 cônscientiôsus
from Latin cônscientia [conscience] * see conscience
源自 拉丁语 cônscientia [良心] *参见 conscience
【引伸】
con.scien.tiously
adv.（副词）
con.scien.tiousness
n.（名词）

conscientious