one day

渡し船: ferry, ferryboat

blades of grass and tree trunks / falcons

Alternative form of 元

long cylindrical things such as glasses of drink, pairs of jeans, pens or trains and buses / films or TV shows / home runs or goals / rounds of a match in boxing, wrestling or judo

current, this, the matter in question / original, actual, base

book / this / main / real / actual / true

ring theory

duct, pipe conduit, pipeline, piping

four, 4