另一个原因是对于新型，更省油的飞机的需求异常膨胀。

Another reason is that demand for new, more fuel-efficient aircraft has never been greater.

youdao

另一个原因是对于新型，更省油的飞机的需求异常膨胀。

Another reason is that demand for new, more fuel-efficient aircraft has never been greater.

youdao