strength

他在危机期间调动了自己的内在力量。

He drew on his inner ___strength during the crisis.

面对这样的挑战需要个性上的力量。

It takes ___strength of personality to face such challenges.

为了增强你的核心力量，可以尝试每天做平板支撑。

To improve your core ___strength, try doing planks every day.