I'm now writing on behalf of the classmates to invite you to come and attend our farewell party on Saturday.(我代表全班同學給您寫信，邀請您來參加我們的送別晚會。)

On behalf of the Students' Union, I'm writing to invite you to give us a speech on Chinese history.(我代表學生會寫信邀請您給我們做一個關于中國歷史的演講。)

They interceded with the authorities on behalf of the detainees.(他們為被拘留者向當局求情。)

On behalf of my crew, I'd like to welcome you aboard British Airways flight 602 from New York to London.(我謹代表全體工作人員，歡迎你們乘坐英國航空公司從紐約飛往倫敦的602號航班。)

He was not there on his own behalf but on behalf of Rome.(他在那里不是代表著他自己，而是代表著羅馬。)

The ability to guard customer data is the key to market value, which the board is responsible for on behalf of shareholders.(保護客戶數據的能力是市場價值的關鍵，董事會代表股東對市場價值負責。)

I decided to make notes during the lecture, and refer to interesting parts and thank her on behalf of the society.(我決定在講座中做筆記，參考有趣的部分，代表社會感謝她。)

On behalf of the student union, I'd like to put forward a proposal to save water on our campus.(我謹代表學生會，提出校園節水的提議。)

Lawyers are always acting on behalf of someone else.(律師總是代表別人去爭利。)

Instead of having one province or a series of hospitals within a province negotiate a price for a given drug on the provincial list, the national agency would negotiate on behalf of all provinces.(國家機構將代表各省進行談判，而不是讓某個省或省內的一系列醫院就省級清單上的某一種藥物的價格進行談判。)