1. Helicopters have been upgraded and modernized. 直升机已经升级并且装上现代化设备。
2. Medical facilities are being reorganized and upgraded. 医疗设施正在进行重组和升级。
3. The entire structure has benefited from an upgraded maintenance program that has also included restoration of some of the EEOB's most spectacular historic interiors. 整个结构得益于一个升级的维护项目,包括对 EEOB 最壮观的历史内景的修复。
4. He was upgraded to security guard. 他被提升为保安。
5. You can pay to be upgraded to a business class seat. 你可以花钱调换到商务舱的座位。