1、
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.
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2、
Also needed is more investment in livestock research, such as breeding for hardier animals.
同时人们还要加大对家禽研究(例如培育适应性更强的品种)的投资.
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3、
Similar fruit to Black Mission, but hardier and a smaller size tree than Mission.
类似加洲黑, 但比加洲黑强壮,果比加洲黑更小的尺寸.
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4、
5、
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.
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