This is the 549th most frequent Chinese word.
大力
With great effort or strength.
Here, '大力' conveys the meaning of providing strong and vigorous support.
学校大力支持学生参加各种活动。
The school strongly supports students in participating in various activities.
In this sentence, '大力' refers to the action of exerting significant physical force.
请大力备用拖拉机拉货。
Please exert force when using the tractor to transport cargo.
Here, '大力' is used to indicate actively and energetically promoting something.