Oxford Topics

(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, sup

bằng

OXF3000:

Science

OXF3000:

Social issues