この汚いゴミをすぐに捨てなければならない。

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

dirty; filthy; foul; unclean; disordered; messy; untidy; poor (e.g. handwriting); indecent (language, etc.); dirty; vulgar; coarse; dastardly; mean; base; underhanded; stingy; greedy

rubbish; trash; garbage; refuse

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.

immediately; at once; directly; soon; before long; shortly; easily; without difficulty; right (near); nearby; just (handy)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

to throw away; to cast away; to dump; to discard; to abandon; to desert; to leave; to give up; to resign