bulky

这件笨重的设备难以运输。

The ___bulky equipment was difficult to transport.

搬家是个挑战，因为所有家具都很笨重。

Moving house was a challenge because of all the ___bulky furniture.

将这套笨重的设备搬过仓库是一个真正的挑战。

Moving the ___bulky equipment across the warehouse was a real challenge.