小丽家的房子正在装潢。星期天,爸爸带着她一起去检查工程进展。一进门,小丽就看见几位木工师傅正在忙碌着。爸爸检查施工质量,小丽则好奇地看着木工师傅们的一举一动。有位工人叔叔和小丽拉起了家常,得知小丽上四年级时,便问道:“你们应该学过角了吧?”小丽点点头,工人叔叔说:“太好了,帮我找个45。的角,待会儿要用。”小丽问:“您带量角器了吗?”工人叔叔双手一摊:“就是忘了带,要不我就直接量了。” Mary’s house is being decorated. On dad, father took her to check the progress of the project. A door, Mary saw several carpenters are busy. Dad check the construction quality, Mary curiously watched carpenter’s every move. A worker uncle and Mary pulled homely, that when Mary was in fourth grade, she asked: “You should learn the angle?” “Mary nodded, worker’s uncle said:” “Very good , Help me find a 45.’s corner, to be used later. ”Mary asked: “ you have a protractor it? ”Worker uncle hands stand: “ is to forget the band, or else I Direct measurement. ”