60秒科学 Scientific American
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
排序
美国当代语料库 English Corpora: most widely used online corpora. Billions of words of data: free online access
Compare genres, dialects, time periods. Search by PoS, collocates, synonyms, and much more.
NOUNPLUS
语法检查和拼写检查
经济学人 The Economist
Get in-depth global news and analysis. Our coverage spans world politics, business, tech, culture and more. Subscribe for free trial.
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四六级英语词汇 英语词汇网:提供英语词汇知识
英语词汇网为广大英语词汇爱好者提供词汇知识和词汇用法,词汇研究和词汇辨析,各类实用词汇表,各类词汇考试等信息,同时为大家提供词汇与语法,词汇与翻译,词汇与惯用法等方面的最新研究 英语词汇网为广大英语词汇爱好者提供词汇知识和词汇用法,词汇研究和词汇辨析,各类实用词汇表,各类词汇考试等信息,同时为大家提供词汇与语法,词汇与翻译,词汇与惯用法等方面的最新研究
