be at drill造句

例句與造句

1. The soldiers were at drill in the barrack yard .
   士兵們在軍營里操練。
2. The soldiers were at drill in the barrack-yard .
   士兵們在兵營練兵場操練。
3. The students were at drill on the playground
   同學們正在操場上操練。
4. The soldiers were at drill
   士兵們正在操練。
5. It's difficult to find be at drill in a sentence. 用be at drill造句挺難的