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(physics) ultrashort wave

(translation studies) an idiomatic translation that is further rewritten to read as fully natural Japanese

superpower (a sovereign state with dominant status on the globe and a very advanced military, especially the United States or formerly the Soviet Union)

単調: monotony / 短調: (music) minor key / 丹頂, タンチョウ: Red-crowned Crane / 探鳥: bird watching

腸内細菌: intestinal bacteria

順調: favorable

順調: favorable, doing well, OK, all right

税制調査会: Select Committee on the Taxation System (abbr. 税調)

気象庁: Japanese Meteorological Agency