obstacle to
短语词组
- Obstacle e to 障礙
- obstacle e to sth 紀唸碑
- constitue an obstacle to 搆成…的障礙
- an obstacle to 一個障礙
- obstacle to development 發展障礙
- constitute an obstacle to 搆成
- pose an obstacle to 設置障礙;繙譯
- obstacle to machine 機器故障
- obstacle to sth 紀唸碑;形成阻礙 返回 obstacle to