一本建て為替

いっぽんだてかわせ

noun

•

single rate

一	one, one radical (no.1)
本	book, present, main, origin, true, real, counter for long cylindrical things
建	build
為	do, change, make, benefit, welfare, be of use, reach to, try, practice, cost, serve as, good, advantage, as a result of
替	exchange, spare, substitute, per-