違信背約

in violation of contract and good faith

to disobey / to violate / to separate / to go against

letter / mail / CL:封[feng1] / to trust / to believe / to profess faith in / truthful / confidence / trust / at will / at random

variant of 背[bei1]

to be burdened / to carry on the back or shoulder

the back of a body or object / to turn one's back / to hide something from / to learn by heart / to recite from memory / unlucky (slang) / hard of hearing

to break an agreement / to go back on one's word / to fail to keep one's promise

to weigh in a balance or on a scale

to make an appointment / to invite / approximately / pact / treaty / to economize / to restrict / to reduce (a fraction) / concise