We all appreciate the honorary secretary's tireless efforts on behalf of our fund-raising this year.
Advanced English Dictionary
+adjective (approving) putting a lot of hard work and energy into sth over a long period of time: a tireless campaigner for human rights + to have tireless energy + She was tireless in her efforts on our behalf. tirelessly adverb: He has worked tirelessly for peace.
Random quote: Cherish your visions and your dreams as they are the children of your soul; the blueprints of your ultimate achievements.: Napoleon Hill