天长地久 tiānchángdìjiǔ HSK7 everlasting Definitions Defs Origin Strokes Stroke Words Sentences Sents 天 tiān noun sky sky; heavens; the space above the earth长 長 cháng adjective long long in space or time; lasting地 dì noun earth The earth; the ground; land; soil; fields久 jiǔ adjective long of a long duration; for a long time