要成为令今天的飞机和零部件制造商不容忽视的挑战者或许还需要数十年的时间。

A serious challenger to today's plane - and parts-makers is probably decades away.

youdao

要成为令今天的飞机和零部件制造商不容忽视的挑战者或许还需要数十年的时间。

A serious challenger to today's plane - and parts-makers is probably decades away.

youdao