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。