わたしは歩いて丘を登った。

I; me; private affairs; personal matter; secrecy; selfishness

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

to walk

hill; height; knoll; rising ground; bonus points awarded to the winner at the end of a game

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 ascend; to go up; to climb; to ascend (as a natural process, e.g. the sun); to rise; to go to (the capital); to be promoted; to add up to; to advance (in price); to swim up (a river); to sail up; to come up (on the agenda)