同学你好，该知识点来自沪江网校《2022年6月CATTI口译三级【名师签约班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好
1.同上，on averagely应为on average；
2.since+时间点，主句用延续性动词，“Since 2013, China has become”改为“Since 2013, China has been”更好~
3.plan的过去分词为planned，注意下需要双写n哦；
4.provide sth for sb，介词是for；provide more public products to the international community应为provide more public products for the international community；
5.since作为连词引导从句，Since the Belt and Road Initiative proposed by China缺少be动词，应为Since the Belt and Road Initiative was proposed by China。
希望对同学有帮助~