填空题
A--boarding/to board a plane, get into a plane
B--plane 6cket
C--flight, flying
D--smooth flight
E--to get off a plane
F--extra flight
G--non-stop flight
H--forced landing
I--top speed
J--first class
K--night service
L--landing
M--to face the wind
N--air mute, air line
O--climbing, to gain height
P--economy class, tourist class
Q--connecting flight
R--direct flight, straight flight
S--to lose height, to fly low
T--to take off, take-off