乳汁的英语怎么写( 三 ) _乳汁

我拿出了桌底下的盒子，打开显微镜，把洋葱玻片放在显微镜下观察。植物细胞有细胞壁，坚硬的外层，能保护细胞及维持细胞的形状；有细胞膜，包裹着细胞质的薄膜，能控制物质进入或离开细胞；有细胞核，细胞的控制中心，再由遗传信息；有细胞质，呈透明胶状，多种生理活动在此进行。
细胞是绝大多数生物体结构的基本单位，动物和植物都是由细胞组成的。植物的营养器官为根、茎、叶，其生殖器官为花、果及种子，一般对植物的辨识，常以"叶"著生於茎、枝节的形态，来鉴定植物种类，因此"叶"是直接鉴别植物种类的部位。
植物的根通常会因为种类不同而有不同的长度，通常轴根系的根能利用较长而粗大的主跟深入土壤深处，而须根系的小根长短都很接近。茎为植物地上部的主轴，枝、叶由此分生。
茎的顶端有生长点，能持续分生细胞，使茎增高。由於茎部上生枝叶。
4.帮我用英文翻译一篇文章"What is nature?, I think, is natural, nature is the civilization of the earth, is the most beautiful natural beautiful costumes, nature is the soul of the earth from nature, 。because every piece of land, is natural, each a stream of art is sucking milk to converge into nature, natural grain is the earth mother, without the natural arms. Nature is the purest thing, be worth us to cherish!
What is the harmonious? Harmony is the principle that all things work, study and life 。People watch the game is lost win. Otherwise, they appreciate others is harmonious. The players are on the surface, in fact, they have a common goal, the common interests. The joy of life is not lost and won a success lies not in the gain and loss, also is not dead. Life is to experience, harmony brings a person feel.
What is the hope? Hope is a kite, it takes people dream for the future, and desire to fly far, far away. Hope is the heart of a child's domicile, toys and candy yearning, it is our dream place on.
Naturally, harmonious, hope, beautiful words!

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