declare Идиома
declare off
make a formal announcement to break off;withdraw from a promise,etc.宣布取消;取消允诺等
Unfortunately,their engagement was declared off.很遗憾,他们的婚约已宣布解除。
What a pity they declared off the agreement they had come to only after great effort.太遗憾了,他们经过努力达成的协议被宣布无效。
The match was declared off.比赛取消了。
I declare|declare
interj.,
dialect Well; oh my; truly.

Used for emphasis.
I declare, it has been a very warm day! Mother said, "I declare, John, you have grown a foot."
declare
declare 1.
declare oneself 1) to state strongly one's opinion
2) to reveal one's true character, identity, etc.
2.
I declare! I am surprised, startled, etc.
declare war on
declare war on Also,
declare war against. Announce one's intent to suppress or eradicate something or someone. For example,
The police have declared war on drug dealing in the neighborhood, or
Several gangs have declared war against each other. This usage transfers the literal sense of the term, “to state formally one's intention to carry on hostilities against another power,” to a somewhat smaller scale.