箱形楼梯;
hale and hearty It took me half an hour to hale the heavy box down the stairs.
我费了半个小时的工夫才把那只重箱子拖到楼下。
I don't know how we'll get this box up the stairs.
我们不知道怎样才能把箱子弄上楼梯。
There was a series of bangs as the box fell down the stairs.
箱子掉下楼梯时发出一连串响声.
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