She wondered if perhaps the bird was actually a giant kite, and the men were using it to lift a heavy object.

她想知道，那只鸟是否真的是一只巨大的风筝，而那些人是否正用它来举很重的东西。

youdao

A heavy object, like a football player moving at a high speed, has a lot of momentum—that is, once he is moving, it is hard to change his state of motion.

一个重物有很大的动量，也就是说，比如一位高速移动的足球运动员一旦运动起来，就很难改变运动状态。

youdao

Before you lift a heavy object, think through your task.

在你移动一件重物之前，想想你整个任务过程。

youdao

Think of an eccentric muscle movement as gradually lowering that heavy object back down.

FORBES: Be (Financially) Eccentric

He died from severe injuries to his face and head caused by a heavy object, post-mortem tests revealed.

BBC: Hove murder: Heavy object killed homeless Lee Williams

The ambulance was transporting a girl who was reliant on a life-support machine, when a heavy object was thrown at it.

BBC: CCTV: Ambulance in emergency call attacked in Bristol