如何使用 "grounded" 造句

1. Henan airlines grounded all flights for three days .
河南航空公司所有航班将停飞三天。
2. The other five were grounded wednesday .
其余五架也于周三停飞。
3. He heard shooting and screams , then felt an explosion as a grounded helicopter was destroyed .
他听到了枪声、尖叫声,一架接地直升机被摧毁时他感到了爆炸。
4. Discussions of homeownership should be grounded in reality .
买不买房的讨论应该以现实为基础。
5. But perhaps most of all , it is grounded in pragmatism .
但或许最重要的原因在于,这是基于实用主义考虑。