1·The police carried out a thorough investigation.
警方展开了全面的调查。
—— 《牛津词典》
2·He had made a thorough investigation. No wonder he knew so much about it.
他对此事做了彻底的调查, 怪不得他了解得那么多。
3·After a thorough investigation, many experts now believe that the streak was a run-of-the-mill jet aircraft contrail.
经过彻底的调查，许多专家现在认为，这条轨迹是一条普通的喷气式飞机尾迹。
4·In particular, the effects of noisy classrooms and activities on those experiencing disabilities in the form of auditory function deficit need thorough investigation.
特别是，还需要深入全面地调查嘈杂的教室和活动对听障人士有哪些影响。
5·We are making a thorough investigation.
我们正在进行彻底的调查。
—— 《柯林斯英汉双解大词典》
6·This is a disgraceful state of affairs and cries out for a thorough investigation.
这是一件不光彩的事情，急需进行彻底的调查。
—— 《柯林斯英汉双解大词典》
7·He made a thorough investigation of the case.
这件事他作了详尽的调查。
8·A thorough investigation of this case is currently under way.
目前正在对该病例进行彻底调查。
9·After thorough investigation there emerged an overall picture.
经过彻底调查，总的情况明朗了。
10·The committee reported its findings after a thorough investigation.
委员会在彻底调查以后报告了调查结果。