[qì lì]
effort; energy; physical strength
exert great efforts
费很大气力
with all one's energy
用尽气力
It doesn't need much effort.
这事不需花多大气力。
Nothing can be obtained without effort.
不花气力什么也得不到。
My efforts were not in vain.
我的气力没有白费。
Both of the wrestlers tried to tumble the adversary with all their strength.
双方摔跤运动员都使出了全身气力想把对手摔倒。