力气

力气

Physical strength; effort.

In this sentence, '力气' is used to indicate physical strength required to move or lift an object.

他搬箱子需要很大的力气。

He needs a lot of strength to lift the box.

Here, '力气' describes the overall physical capability or vitality a person has, showing a general decline in strength.

她的力气越来越小了，可能是因为年纪大了。

Her strength is decreasing, possibly due to aging.

In this sentence, '力气' reflects the personal energy or vigor available for performing tasks.

我今天没什么力气去做家务。

I don't have much energy to do household chores today.