Military officials are still tight-lipped about when or whether their forces will launch a ground offensive.
军官们对于什么时候以及是否发动地面进攻依然守口如瓶。
《柯林斯英汉双解大词典》
2
The Café de la Gare was considered a first-rate training ground and launch pad for young comedians.
火车站咖啡厅被认为是年轻喜剧演员最好的训练场地和跳板。
《柯林斯英汉双解大词典》
3
The Launch and Test Range System includes ground-based surveillance, navigation, flight operations and analysis, command and control, communications and weather assets for space missions.