Definition
as a reciprocal action or exchange; in compensation or requital.
作為交換；作為回報
She agreed to help me with the presentation, and in return, I proofread her paper.
她同意幫我做簡報，作為回報，我幫她校對了論文。
The company provides free training, and in return, employees must sign a two-year contract.
公司提供免費培訓，作為回報，員工必須簽署一份兩年的合約。
I helped him move, and in return, he treated me to dinner.
我幫他搬家，作為回報，他請我吃了晚餐。