Correct

起落

/ qǐluò / 
Strokes

Definition

to rise and fall/takeoff and landing/ups and downs

Example

As a Verb

(of aircraft) take off and land

1
Fēijī
飞机
qǐluò
起落

take-off and landing of an aircraft

2
Duǎnjù
短距
qǐluò
起落

short take-off and landing

3
Chuízhí
垂直
qǐluò
起落

vertical take-off and landing (VTOL)

As a Verb

rise/surge and fall; go up and come down; fluctuate

4
Xīncháo
心潮
qǐluò
起落

fluctuations of emotions

5
Jiàgé
价格
qǐluò
起落

fluctuations of prices

6
Hǎicháo
海潮
qǐluò
起落

rise and fall of sea tides