She acquired a knowledge of the English by careful study.
她认真学习而精通英语。
She acquired a knowledge of the English by careful study.
她认真学习而精通英语。
He is very conscientious in the performance of his duties.

常认真地履行职责。
He is a conscientious man and knows his job.
很认真负责, 也很懂行。
The problem was gone carefully into by the engineers.
工程师
认真地研究
这个问题。
There is no need to take her little boutades seriously.
没有必要去认真对待她的种种怪念头。
Buying a house is a serious matter.
买房是一件需要认真考虑的事。
She has a frivolous nature and won't take anything seriously.
"她生性轻浮,什么事情都不肯认真对待。"
They’ve been dallying with the idea for years.

多年来一直有这个想法,但从没有认真考虑过。
He was fired when he loafed on the job.
因工作不认真而被开除。
This is the nth time I've told you to do your homework carefully.
至今我不知告诉你多少回
, 做作业要认真。
Bobby is going about his homework very seriously tonight.
鲍比今天晚上在
常认真地做功课。
He edited a book of poetry carefully.
认真地编辑
一本诗集。
She went through the typescript carefully to eliminate all errors from it.
她认真地

打字稿, 从排除所有的错误。
One ball one world, black and white, apple of footie fans's eye!
作者体现
一个球迷的可爱,认真和热情.
I'm not playing games—this is for real!.
我并
在闹着玩——我是认真的!。
The government has yet to get to grips with the problem of homelessness.
政府还需认真处理无家可归的人的问题。
You may laugh but I’m in deadly earnest.
你可以笑,但我绝对是认真的。
Robert is a very earnest young man; you can trust him.
"罗伯特是个十分认真的年轻人,你可以信赖
。"
Conscientiously, absorbedly work in a planned order way pursue the perfection.
做事认真、专注,有计划、有条理,追求完美。
He maintained an attitude of high seriousness.
保持
极为认真的态度。
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指正。