Each persona represents a role in the organization and is portrayed either by me, one of the course assistants, or an external person.
每个人物扮演机构中的一个角色，这些角色由我，或者某一位助教，以及一名特约人员分别饰演。
2
Of course, you can never control external factors like network latency, which will always be present in any approach.
当然，某些外部因素总是不可控的，比如网络延时，在任何方法中都会存在这些因素。
3
Instead of tapping its own abundant capital, the region continues to depend on external funds to finance internal investment. Outside investors, of course, may have different investment horizons.