1.approaching v.接近
例句:You see the plane you have just left, drift into the clouds (if there are any), and the land is far away but approaching rapidly.
你看见你刚刚离开的飞机,漂移到云中(如果有云的话),而地面还很遥远但是正在快速接近你当中 。
2.navigation n.航行;航海
例句:Chances of failure and disaster are ever present in all space navigation.
所有的宇宙航行都始终存在着失败和发生灾难的可能性 。