We needed to do decimals to round up and round down numbers.我们得把小数四舍五入成整数。...simple math concepts, such as decimals and fractions.简单的数学概念，如小数和分数We needed to do decimals to round up and round down numbers...我们得把小数四舍五入成整数。...
The colonel rushed up to Earle, shaking his gun at him.上校冲向厄尔，朝他挥着枪。Sylvia Earle is an ocean explorer and expert on ocean plant life.西尔维娅·厄尔是海洋探险家,同时也是海洋植物专家.For Earle, eating a fish would be like eating a dog or a cat.这...