afield

副词 afield:

1. far away from home or one's usual surroundings- R.A.Hall
   同义词：abroad
2. in or into a field (especially a field of battle)
3. off the subject; beyond the point at issue

1. Don't go too far afield or we might lose you.
   不要走得太远，要不然我们会找不到你的。
2. Missionaries went far afield to propagate their faith.
   传教士到远方去传播其信仰。