Englishfor English speakers
previously
Adverb
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If something was done previously, it was done before.
We discovered a language that was previously unknown.
survey
Noun
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A survey is a broad look at a topic or place.
Before looking for a job, he did a survey of the companies in the area.
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A survey is a formal way to gather data by asking question of people: a questionnaire.
The Architects' Journal conducted a survey of its readers to find what were considered the best modern buildings in Britain.
The results of a recent survey by Lianhe Zhaobao show that 70% of all respondents think that Singapore is an ideal place for retirement.
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A land survey involves photographing and the land to make a map of it.
Before building the train tunnel, extensive geological surveys were carried out on the British side of the Channel.
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A survey paper/book is a general description of a topic, often introductory.
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A survey is the act of reading a broad range of books and articles on a particular subject.
survey
Verb
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If you survey something, you look at it to try to see or understand the whole of it.
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If you survey people about their thoughts or personal information, you ask a large number of people in a formal way, often using a questionnaire.
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If you survey a place, you look at every part of it, often from a high spot.
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If you survey books and articles, you read a large number on a particular topic.
site
Noun
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A site is a location or a place.
He was working on a building site in Alton when a concrete mixer rolled back and hit him.