This paper is upon this issue to be explored.
本文正是基于这种考虑对这一问题进行探讨的。
Upon reviewing this issue it does not appear as though further assistance is required.
就是他们查看这个问题之后发现好像不再需要他们的帮助了。
I feel called upon to draw your attention to this issue.
我感到有责任请你们注意这个问题。
This is an important issue (that) we must agree upon.
这是个我们必需达成分歧的重要成绩。
This is an important issue (that) we must agree upon.
这是个我们必需达成分歧的重要成绩。
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