a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity" 同义词:natural process, natural action, action,
the state of being active; "his sphere of activity"; "he is out of action" 同义词:action, activeness,
(chemistry) the capacity of a substance to take part in a chemical reaction; "catalytic activity"
其他语种释义
activityとは意味:activity n. 活動, 行動, 働き; 活発な行動; 事業, 仕事; 活力; (市場の)活況; 活性. 【動詞+】 ◆This depresses hormonal activity. これでホルモンの働きが弱まる ◆ban (an) activity 活動を禁止する ◆break off (an) activity 活動を中断する The guerrillas have agreed ...