recommendation后接什么介词

后边接动词on，例如：

1、Some countermeasure and recommendation on RMB's full convertibility."对人民币实现完全自由兑换提出了对策和建议

2、That may be an email from a satisfied customer or a colleague's recommendation on LinkedIn， but even better is your own record of meeting specific goals you set for yourself.这些记录可以是来自一名满意顾客的邮件，或是同事在商务社交网站LinkedIn上的推荐，但达到自己设定目标的记录更好。