已经英语怎么说
Consumers had returned millions of aluminum cans and glass and plastic bottles.
With the old way of life doomed, aluminum projects like this one had come to be perceived, wisely or not, as a last chance.
The parks already attract specialist visitors, including mountaineers, who come to climb the technically difficult peaks, and fishermen, lured by the salmon and trout in the region's rivers.
More than a decade later, there was no sign of the ecosystem re-building itself.
The rich, green canopy is teeming with life, and forest researchers have developed ingenious methods for accessing this mysterious ecosystem.
The gentle, brainy fellow, at 78, remains alert and industrious.
Many of these species have vanished or are facing extinction.
The schedule for the talks has been agreed, but the location is still in dispute.
Now that you have developed a topic into a tentative thesis, you can assemble your notes and begin to flesh out whatever outline you have made.
When the researchers looked at the seedling tissues under an electron microscope, however, they could see the nanotubes had actually entered living cells.
Many of the drawbacks of doing a PhD are well known.
The flowers in Isabel's room had withered.
In boxing, we have already seen numerous, dubious world title categories because people will not pay to see anything less than a "World Title" fight.
We've already mentioned the insulating effect of snow.
The builders have finished the roof.
The archaeologists had to remove a layer or reeds and ropes that covered the burial.
The outer layers of the volcano were worn away, until the hardcore stood completely exposed.
Other researchers had previously modified the bacterium to produce alcohol from organic waste.
As for us, we've started using our plane time as a work-free zone, and thus time to dip into the recovery phase.
Western Europeans had also developed and put into use the magnetic compass, which helped when clouds obliterated both the Sun and the stars.
Already some are raising prices to pass on the higher cost to customers.
Although some rivers have been recolonized, the unique genes of the original populations have been lost.
On arriving home I discovered they had gone.
He said his car had got stuck in the snow.
The burger business faces more pressure from regulators at a time when it is already adapting strategies in response to shifts in the global economy.