1. Examinations are past and Commencement Day is at hand. 考试过去了，毕业典礼日又近在眉睫。
2. With commencement exercises happening these days all over the world, today is a good time to write again about the Graduation Pledge Alliance. 随着目前毕业典礼活动在全球各地不断举行，今天是个好时机会去再次写关于毕业誓言联盟的事情。
3. ADB projects require to establish project monitoring and evaluation system before the commencement of loan, to issue project report quarterly or semiannually. 亚行项目在贷款生效前即要求建立起项目的监测和评价体系，每季度或每半年出具项目报告。
英英解释
n.
1. the time at which something is supposed to begin
2. an academic exercise in which diplomas are conferred
3. the act of starting something
