Some countries placed large orders before data were available to support evidence-based projections of need, including the number of doses.

在尚未得到数据，对需求(包括剂量数量)做出基于证据的预测时，一些国家就发出了大订单。

youdao

Some countries placed large orders before data were available to support evidence-based projections of need, including the number of doses.

在尚未得到数据，对需求(包括剂量数量)做出基于证据的预测时，一些国家就发出了大订单。

youdao