A trebuchet consists of a long beam attached to a pivot rod on a heavy frame.

抛石机是由一个带转轴的长梁连接在底座上构成的。

" The elephants then stop eating and become too weak to keep their heavy frames upright, " he added.

" 大象会停止进食，身体变得虚弱，无法支撑它们沉重的身躯。"

Glasses with heavy frames signified intelligence or nerdiness.

粗框眼镜表示聪明或书呆子。

They have heavy frames and tires.

他们有沉重的车架和轮胎。

Interspread were steel engravings in heavy frames, some of them eight feet long, which Scarlett had ordered especially from New York.

镜子之间也有些钢版印制的版画，镶着大框子，有的达八英尺，是思嘉从纽约专门定做的。