DEC

名词 dec:

1. the last (12th) month of the year
   同义词：December
2. (astronomy) the angular distance of a celestial body north or south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere
   同义词：declination, celestial latitude

1. If the account is settled before31st Dec.
   如果账目在12月31日前结清，可减少一镑半。