mass noun
1- the systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions研究, 调查：
we are fighting meningitis by raising money for medical research.
我们正通过为医学研究筹款的方式与脑膜炎做斗争。
1.1
researches
acts or periods of such investigation研究工作, 调查工作; 研究阶段：his pathological researches were included in official reports.
他在病理学方面的研究被收入正式报告。
1.2
- as modifier engaged in or intended for use in such investigation and discovery（从事）研究; （用作）研究：
a research student
研究生
a research paper.
研究论文。
with obj.
1- investigate systematically研究, 调查：
the author spent 25 years researching the Tsar's life
作者花了25年的时间研究这位沙皇的一生
no obj. the team have been researching into flora and fauna.这个小组一直在研究植物区系和动物区系。
1.1
- discover facts by investigation for use in (a book, programme, etc.)（为著作）探究（资料）：
I was in New York researching my novel
我当时正在纽约为我的小说收集素材
as adj., with submodifier (researched) this is a well-researched and readable account.这是一篇经过缜密研究、颇有可读性的报告。
USAGE
The traditional pronunciation in British English puts the stress on the second syllable, -search. In US English the stress is reversed and comes on the re-. The US pronunciation is becoming more common in British English and, while some traditionalists view it as incorrect, it is now generally accepted as a standard variant of British English.
派生词
researchable
adjectiveresearcher
noun词源
late 16th cent.: from obsolete French recerche (noun), recercher (verb), from Old French re- (expressing intensive force) + cerchier 'to search'.