The night falls fast in winter.
Fuyu no hi wa hayaku kureru.
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
day; days; sun; sunshine; sunlight; case (esp. unfortunate); event
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
fast; quick; hasty; brisk; early (in the day, etc.); premature; (too) soon; not yet; (too) early; easy; simple; quick
to get dark; to end; to come to an end; to close; to run out; to be sunk (e.g. in despair); to be lost