例句與造句

1. Story is not expected to move before 7 p . m . EST because of travel and filing constraints from Camp David
2. Note that the 2 " N " rank and file constraints form the primary constraints, while the 4 " N "  " 2 diagonal and reverse diagonals form the secondary constraints.
3. It's difficult to find file constraint in a sentence. 用file constraint造句挺難的