flat / solid / board / plank / wooden board

ten thousand / myriad / a great number of

sloping / hilly

伝言板: message board

電話番号: telephone number

万民法: jus gentium

テレビ番組: a television program, a TV show, a telecast

carrying out the real thing without practising; launching into something without practice

standing signboard

“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