I've been chopping away for half an hour but the tree is still standing.
这树我砍了半小时,但还未把它砍倒。
We chopped down an oak tree.
我们伐倒了一棵橡树。
Those chunks of meat are rather large—could you chop them up a bit smaller?
这些肉块相当大,还能再切小一点吗?