大家都搜：
天险
1、natural endowment───先天禀赋；天然条件；天然条件; 禀赋
2、natural amber───天然琥珀
3、natural process───自然过程；天然过程；天然过程，自然过程
4、cicatrizante natural───自然愈合
5、natural───adj.自然的；物质的；天生的；不做作的；n.(Natural)人名；(西)纳图拉尔；n.自然的事情；白痴；本位音
6、natural nine───自然九
7、natural mellow───自然醇厚
8、natural causes───自然因素
9、natural person───[法]自然人（区别于法人）
1、Research suggests chemicals in the foods block tumour growth and boost the body's natural defences against cancer.───研究显示，这两种食物里的化学物质抑制肿瘤成长，提高身体对抗癌症的天然防御力。
2、It could also improve blood flow in cells, which protects healthy cells but leaves cancer cells vulnerable to the body's natural defences.───另外，这种治疗方法增加了细胞的血液供应，保护了正常细胞，使癌细胞更易于被机体的自然防御XiTong所攻击。
3、ANTIBODIES - the linchpin of our natural defences against bacteria and viruses - may also protect us from strokes.───抗体——人类抵抗细菌和病毒的天然防护的关键——也可能保护我们免遭中风。
4、Once a fungus evolves past the natural defences of one set of trees, it will spread like wildfire through the rest.───一旦一种真菌侵犯了一株香蕉树的天然防御，将会像野火燎原般扩散。
5、The scientists do not fully understand how supplements may trigger early death, but they may interfere with the body's natural defences.───科学家尚不完全清楚维生素制剂导致过早死亡的原因，但这些制剂会妨碍人体的自然抵抗力。
6、By tweaking its genes, the scientists were able to "tune" the worms' natural defences - enzymes it produces to tackle superoxide.───通过改变其基因，科学家们能够“调节”蠕虫的自然防御XiTong-用产生的酶处理过氧化物。
7、Vitamins and minerals can contribute to the body's natural defences on three different levels.───维生素和矿物质，能促进人体的自然防御三个不同的层次。
1、A good diet helps build the body's natural defences.
2、Patients undergoing xenotransplantation will be especially vulnerable, because their natural defences are down.
3、How can measles virus escape the body's natural defences to wreak such havoc?