医生需要随时准备救人。
Doctors need to stand by to save people.
他只想着救人。
He only thought about saving a life.
他勇敢地跳入水中救人。
He jumped into the water bravely to save someone.
他勇敢地跳进了河里救人。
He bravely jumped into the river to save someone.
她毫不犹豫地跳进了水里救人。
She jumped into the water to save the person without hesitation.
