be at drill造句

例句与造句

1. The soldiers were at drill in the barrack yard .
   士兵们在军营里操练。
2. The soldiers were at drill in the barrack-yard .
   士兵们在兵营练兵场操练。
3. The students were at drill on the playground
   同学们正在操场上操练。
4. The soldiers were at drill
   士兵们正在操练。
5. It's difficult to find be at drill in a sentence. 用be at drill造句挺难的