朗文英文词典 Longman Dictionary of Contemporary EnglishLongman English Dictionary - the leading dictionary for learners of English of all levels: definitions, idioms, examples and more. Longman English Dictionary - the leading dictionary for learners of English of all levels: definitions, idioms, examples and more.
Nature 自然 Nature重大科研成果发布 First published in 1869, Nature is the world’s leading multidisciplinary science journal. Nature publishes the finest peer-reviewed research that drives ground-breaking discovery, and is read by thought-leaders and decision-makers around the world.