不熟悉的

• unconversant
• unfamiliar
• unacquainted
• strange

例句

1. 如鱼离水的，感到生疏对自己所处的环境或所干的事完全不熟悉的
   Completely unfamiliar with one's surroundings or activity.
2. 欧洲和美洲是他们不熟悉的地区。
   Europe and America lay somewhere out of their beat.