除非经历严重的和意想不到的困难，杨格计划就不会得到通过。

The adoption of the Young Plan was not achieved without serious and unexpected difficulties.

youdao

除非经历严重的和意想不到的困难，杨格计划就不会得到通过。

The adoption of the Young Plan was not achieved without serious and unexpected difficulties.

youdao