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- Male sterile line mainly came from the natural mutant, and then transformed sterile line and maintainer line by backcross. 其胞质雄性不育源大多来自自然突变，后经回交转育出不育系和保持系。
- HEREDITY ANALYSIS OF A NATURAL MUTANT OF PAPAYA RESISTANT TO PRSV 番木瓜抗PRSV突变体的抗病性遗传分析
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
- Events took their natural course. 事态依自然进程发展。
- She has a natural wave in her hair. 她的头发自然卷曲。
- Magnetism is a natural phenomenon. 磁力是一种自然现象。
- Study on karyotypes and isozyme of esterase in the natural mutant train--Dayelongcha 自然突变株系--大叶龙茶核型及酯酶同工酶研究
- It is difficult to be natural when one is tense. 人在紧张的时候很难泰然自若。
- The egoism of an artist sometimes seem natural. 艺术家的自负有时看起来是自然的。
- They used only natural pigments to dye the wool. 他们只用天然颜料染毛织品。
- Children are natural exhibitionists. 儿童天生喜欢自我表现。
- Everything we used was made from natural materials. 我们所用的一切都是由天然材料做成的。
- It's quite natural that you should succeed. 你的成功是很自然的事情。
- He's a natural for the role of Lear. 他是李尔王这一角色的理想人选。
- Most first-class footballers are natural athletes. 多数一流的足球运动员都是天生的健将。
- Only humans have a natural upright posture. 只有人类才有自然直立的姿势。
- The area has been designated as natural reserve. 该地区已被指定为一个自然保护区。
