conscientious
- adj. 认真的；尽责的；本着良心的；小心谨慎的
考试真题
- If you tell an acquaintance you are a grandfather who recently lost his wife and who does volunteer work on weekends, several elements of your self-image are bought to light — the roles of grandparent, widower and conscientious citizen.
出自-2013年6月听力原文