HSK 3.0 11000 CHINESE WORDS
ENGLISH 6000 THEME WORDS
OXFORD 5000 CORE WORDS
TANAKA 6000 CORE WORDS
ngày đêm dài bằng nhau 
day and night of equal length, equinox
[ ngày ] : day, daytime, date
[ đêm ] : night
[ dài ] : long; to last (time)
[ bằng ] : (1) equal to, the same as, even, level, flat, calm, peaceful, safe; (2) to use, be made of; to travel by (means of), be transported by, run (using some fuel); (3) friend, comrade; (4) diploma, certificate; (5) by means of, with, in (language); (6) proof, evidence, support, testimony
[ nhau ] : (1) together, in company, each other; (2) placenta
ngày đêm dài bằng nhau day and night of equal length, equinox [ đêm ] : night
[ dài ] : long; to last (time)
[ bằng ] : (1) equal to, the same as, even, level, flat, calm, peaceful, safe; (2) to use, be made of; to travel by (means of), be transported by, run (using some fuel); (3) friend, comrade; (4) diploma, certificate; (5) by means of, with, in (language); (6) proof, evidence, support, testimony
[ nhau ] : (1) together, in company, each other; (2) placenta