The spy never told his family about his underground activities.
这位特务从未把他的机密运动通知家里人。
The mining depth of this deposit is great and its underground pressure activities are Strong.
矿床开采深度较大，地压活动更为强烈；
The mining depth of this deposit is great and its underground pressure activities are Strong.
矿床开采深度较大，地压活动更为强烈；
应用推荐