When corn came to Europe from Mexico, now they had a much hardier crop that could be grown easily in more northerly climates and the centers of power began to shift accordingly.

当玉米从墨西哥传到欧洲的时候，他们有了一种更耐寒的作物，更容易在更偏北的气候条件下种植，权力的中心也随之转移。

Yet he adds, "They are not hardier than other people."

接着他说，“可是他们并不比旁人更结实。”

The fish, Chen notes, are hardier and don't require as much work.

陈海平说，这种鱼生存能力更强，而且不需要费多大劲儿照顾。

It is much hardier than lemon, however, though less hardy than grapefruit and sour orange.

它虽不及葡萄柚和酸橙耐寒，但却比柠檬耐寒得多。

Theoretically, experiments with genes that confer resistance to disease or herbicides could create hardier weeds.

从理论上说，用含有抗病或抗除草剂的基因进行试验，可能产生更难于对付的杂草。

Genetically modified trees tend to grow faster, give greater yields - of food, fruit, or other products - and be hardier.

基因改良的树木基因改良更快。同时，产量更高，也就是说可以获得更多的粮食、水果以及其他产品。

When a full course of medication isn't completed, a person's system is cleared of only the weakest germs, leaving room for a hardier strain to thrive.

当一个药物疗程未完成时，人体系统被清除的仅是些较弱的病菌，给更顽固株留下了生长的空间。

Climate change is improving once-uncongenial British conditions; harvests are earlier and sun-hungry French varieties are replacing hardier Germanic vines.

气候变化改善了英国本来不太适合葡萄的气候。葡萄收获期提前，喜爱阳光的法国品种替代了酸涩的德国品种。

Because slime mold finds the paths that are most resilient to faults or damage, it could be used to make mobile-communication and transportation networks hardier.

由于发现粘菌的路径，是最能适应各种恶劣的环境，它可能被用来制造移动通讯和强化运输网络。

Meanwhile, recent discoveries show that microorganisms are much hardier than we thought, meaning that even planets that are not terribly Earth-like might still be suited to biology.

另一方面，最近的发现表明微生物要比我们原先想的要顽强得多，这意味着即便是那些不是严格类比地球的星球环境也能促成生物的演化。

The find has stirred excitement among those working to restore the American chestnut, and raised hopes that scientists might be able to use the pollen to breed hardier chestnut trees.

这项发明给致力于恢复美利坚合众国花生树的许多人带来欢欣鼓动，从头燃起了但愿，但愿科学家们能哄骗这些个树的花粉培育蜂窝陶瓷过滤片更茁壮的花生树。

The queens taken from these hives are then placed in new hives, exposing them to even more "disease pressure." The theory is that each generation of survivors will be hardier than the last.

首先，研究者发现了一种对螨虫具有抵抗力的蜂群，将这种蜂群的蜂王置于新的蜂房中，并对它们进行更为严酷的疾病考验，经过一代又一代的筛选，存活下来的新品种的抵抗能力将越来越强。