tatami; a tatami mat; Japanese straw mat

theoretical knowledge without practical experience; Literally, “swimming lessons on a tatami floor”

【Conjunction】after; on the basis of; upon

use (noun) / a task, business, an errand

department, section / (taxonomy) family

畳む: fold, especially fold clothes; close down a shop

Synonym of 水道橋 (suidōkyō, “aqueduct”) (an artificial channel conveying water)

in addition; furthermore / on top of (which)

the above / the top (position or direction) / the surface of / superior in skill, age, level, etc.

step on / tread on / stumble / slip