school uniform

(humanities) sinology

赤外線天文学: infrared astronomy

花一匁: a traditional Japanese children's game that is similar to the game red rover

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds

Montgomery (a city, the capital city of Alabama) / Montgomery (a city in Texas) / Montgomery (a town in Powys, Wales)

(astronomy) radio astronomy

astronomical (relating to astronomy) / astronomical (vast)

gate / entrance / family

a traditional Japanese children's game that is similar to the game red rover