不遵守承諾是可恥的。
It is a shame not to keep your promise.
Meaning
to comply with; to abide by; to respect (an agreement)
Examples
不遵守承諾是可恥的。
It is a shame not to keep your promise.
我們無論如何也應該遵守法律。
We should always act in obedience to the law.
但他沒有遵守承諾。
But, he didn't keep his promise.
他这个人话不多,但总是遵守诺言。
他這個人話不多,但總是遵守諾言。
He is a man of few words, but he always keeps his promise.
比尔常常不遵守诺言。
比爾常常不遵守諾言。
Bill often doesn't keep his promises.