As is often the case, we have worke

As is often the case, we have worked out the production plan.

結果 (中文) 1:

因为通常情况下，我们制定了生产计划。

結果 (中文) 2:

就像通常那样，我们已经制定了生产计划。

結果 (中文) 3:

如通常情况是，我们已制订了生产计划。