tirelessly

He added that he and his wife had "fought tirelessly to highlight the systemic failings" that led to Oli's death.

For many, it's about striving for excellence or working tirelessly to reach the highest standard.

"I am hugely grateful to the Irish authorities, the RNLI, Royal Air Force and Royal Navy who have responded rapidly to this incident and have worked tirelessly on the search."

"I want to thank the officers who have worked tirelessly today to enable both protests to be kept separate, but it is totally unacceptable that officers have been assaulted."

YouTube TV’s 10 million customers have been without Disney channels for two weeks; CEO Bob Iger told Wall Street analysts: “We’re trying really hard ... working tirelessly to close this deal.”