杞人忧天 | Qǐ rén yōu tiān | man of Qǐ / fears the sky falling (idiom) / groundless fears | |
杞人之忧 | Qǐ rén zhī yōu | man of Qǐ / fears the sky falling (idiom) / groundless fears | |
杞国之忧 | Qǐ guó zhī yōu | man of Qǐ / fears the sky falling (idiom) / groundless fears | |
杞国忧天 | Qǐ guó yōu tiān | man of Qǐ / fears the sky falling (idiom) / groundless fears | |
杞天之虑 | Qǐ tiān zhī lu:4 | man of Qǐ / fears the sky falling (idiom) / groundless fears |