How could this rock, which weighed several tons, have been lifted to this spot, without the aid of many men?

这块大石头重达数吨，假如没有许多人一起用力，怎么能把它抬到这个地方上去呢？

youdao

This gift was the amber Room, which was given this name because several tons of amber were used to make it.

这件礼物就是琥珀屋，它之所以有这个名字，是因为造这件房子用了好几吨的琥珀。

youdao

This gift was the amber Room, which was given this name because several tons of amber were used to make it.

这件礼物就是琥珀屋，它之所以有这个名字，是因为造这间房子用了很多吨琥珀。

youdao

Now there are so many,experts say up to twenty metric tons a day could be removed with nets ver a period of several years.

VOA: special.2009.12.15

Several tons of rock had to be dug out of the ground just to make one barrel of oil.

NPR: Industry Seeks to Extract Oil from Rocky Mountain Shale

He said he felt justifiable anxiety as he watched the crane part, which weighs several tons, being hoisted over his building.

WSJ: NYC workers replace crane damaged by Sandy

On the main deck, crew members using a crane transferred several tons of steel beams and plating to the other ship.

NEWYORKER: Neptune��s Navy