体を洗い、ずっと気分がよくなった。

body; torso; trunk; build; physique; constitution; health; corpse; dead body

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to wash; to investigate

continuously in some state (for a long time, distance); throughout; all along; the whole time; all the way; much (better, etc.); by far; far and away; far away; long ago; direct; straight

feeling; mood

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

nicely; properly; well; skillfully; skilfully; frequently; often

to become; to get; to grow; to be; to reach; to attain; to result in; to prove to be; to consist of; to be composed of; to succeed; to be complete; to change into; to be exchanged for; to play a role; to be promoted; to do ...