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Macmillan English Dictionary for Advanced Learners, also known as MEDAL, is an advanced learner's dictionary published from 2002 until 2023 [1] by Macmillan Education.It shares most of the features of this type of dictionary: it provides definitions in simple language, using a controlled defining vocabulary; most words have example sentences to illustrate how they are typically used; and ...
Macmillan Education was created as an imprint and division of the broader Macmillan publishing business in the UK in the early 1970s. [1] [2] In 1994 it became legally framed within Macmillan Education Ltd, a company in the Macmillan group. [3]
B-2 Spirit A U.S. Air Force B-2 Spirit flying over the Pacific Ocean in 2016 General information Type Stealth strategic heavy bomber National origin United States Manufacturer Northrop Corporation Northrop Grumman Status In service Primary user United States Air Force Number built 21 History Manufactured 1987–2000 Introduction date 1 January 1997 First flight 17 July 1989 ; 35 years ago ...
Human impact on the environment. From top left, clockwise: satellite image of Southeast Asian haze; IAEA experts investigate the Fukushima disaster; a seabird during an oil spill; depiction of deforestation of Brazil's Atlantic forest by Portuguese settlers, c. 1820 –25; acid mine drainage in the Rio Tinto; industrial fishing in 1997, a practice that has led to overfishing.