彼は湖のところまで駆け下った。

he; him; his; boyfriend

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

lake

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

place; spot; scene; site; address; district; area; locality; one's house; point; part; space; room; whereupon; as a result; about to; on the verge of; was just doing; was in the process of doing; have just done; just finished doing

until (a time); till; to; up to; to (a place); as far as; to (an extent); up to; so far as; even; only; merely

to run (race, esp. horse); to dash; to gallop (one's horse); to canter; to advance (against one's enemy)

to come down; to go down; to fall; to drop; to sink; to get lower; to hang; to dangle; to move back; to step back; to withdraw; to retire; to deteriorate; to fall off; to be downgraded; to get closer to the present day; to go south