Their actions amount to a breach of contract.

他们的行为已属违反合同。

《牛津词典》

The company has been served with a writ for breach of contract.

这家公司因违约已接到法院令状。

《牛津词典》

Any violation of deadlines contained in the contract will equate to breach of contract.

凡违反合同规定的任何期限都等同违约。

youdao

However, Judge Mark Pelling QC dismissed Mr Bailey's claims for breach of contract and breach of confidence.

BBC: Levi Roots

The plaintiffs alleged claims of breach of contract, breach of promise, and lost profits arising from contracts related to a yellow pages listings service.

FORBES: Links 1 Dec: Yahoo's $2.7 Billion Mexican Standoff

The sole FINRA Arbitrator hearing this matter found Respondent Wachovia liable on the claims of negligence, negligent supervision, fraud and breach of contract (no finding of liability on breach of fiduciary duty).

FORBES: Stockbroker Exonerated For Following Broken FNMA Compass