保证杜长在回国后保留其职务的翻译：Guaranteed Du Chang back to retain their positions 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Du ensure long after returning home to retain its position in the

Guaranteed Du Chang back to retain their positions

Guaranteed Du Chang retains its duty after returning to homeland

Ensure that Tu long on their return, retain their positions

Guaranteed Du Chang back to retain their positions