改错 I used to go down to the bank of the stream and chose little flattened stones to throw across
问题描述:
改错 I used to go down to the bank of the stream and chose little flattened stones to throw across
I used to go down to the bank of the stream and chose little flattened stones to throw across the water,which moved as swiftly as swallows
答
flattened-flattening