Nitrates are used as preservatives in food manufacture...硝酸盐在食品加工业中被用作防腐剂。The juice contains no artificial preservatives.这种果汁不含人工防腐剂。Meat spoils more quickly without preservatives.不加防腐剂,肉会坏得快.Free OfArtificial colors, pr...
这个男孩用弹弓射石头.The boy discharged a stone from a sling.那孩子把弹弓交给了老师.The boy surrendered the catapult to the teacher.他把石子放进弹弓里，然后往回拉动橡皮筋。“嘣”！He fitted a pebble into the catapult and pulled back the elastic. Twang!...
某些种类的动植物不能适应迅速变化的环境。Some animal and plant species cannot accommodate to the rapidly changing cond-itions.这个岛屿拥有丰富多样的景致及种类繁多的野生动植物。The island offers such a wide variety of scenery and wildlife.这本书包括了有关动植物的一些有用的知识。The book...