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qZBf3SCsi*iW。

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4So)~&_B#Lxl=*+~P98v。