词汇	知彼知天
释义	知彼知天 know your enemy,know the weather
随便看	straightening device straightening die straightening drum Straightening force straightening genioplasty straightening hammer straightening, lifting, lowering straightening machine straightening machines straightening mill straightening moment straightening my collar straightening of bars straightening of cant rail straightening of channel straightening of fibers straightening of kinked rail straightening of rail straightening of shapes straightening of teeth straightening of tie spacing straightening of track straightening operation straightening or reconditioning of saw blades straightening out