他们正设法查明是谁砍倒了那棵树 They are trying to ( )who cut down the tree.
问题描述:
他们正设法查明是谁砍倒了那棵树 They are trying to ( )who cut down the tree.
答
find out
他们正设法查明是谁砍倒了那棵树 They are trying to ( )who cut down the tree.
find out