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Scientists have long been looking for ways to boost the body's immune system against cancer.
中文意思:
科学家们很长时间以来一直在寻找提高人体免疫细胞的能力以对付癌症的方法.


以下为相关句子列表(点击查看,可以看对应的解释):
1 Scientists have known for some time that hypertension is a “heritable” condition that runs in families, though diet and other factors also contribute to high blood pressure. 已记 看解释
2 Scientists have known since the 1930s that there was a problem: that the mass of the observed matter was far too small for gravity to keep the stars within the galaxies and the galaxies within clusters. 已记 看解释
3 Scientists have known that neural stem cells play a key role in both embryonic and postnatal mice, driving the development of specialized cells within the brain such as neurons, astrocytes, oligodendrocytes, and ependymal cells. 已记 看解释
4 Scientists have learned to compound substances unknown to nature. 已记 看解释
5 Scientists have located a bottleneck in the brain. Faced with two almost simultaneous tasks less than 300 milliseconds apart, the brain's ability to deal with the second one slows down. 已记 看解释
6 Scientists have long been looking for ways to boost the body's immune system against cancer. 已记 看解释
7 Scientists have long believed that bees first appeared about 120 million years ago -- but previous bee fossil records dated back only about 65 million years. 已记 看解释
8 Scientists have long believed that greenhouse gases must have been insulating the earth much more efficiently than they do today. 已记 看解释
9 Scientists have long known that cartilage gets its strength from interlocking millimetre-long collagen fibres that work in a similar way to the load-bearing steel rods in reinforced concrete. 已记 看解释
10 Scientists have long known that dolphins identify themselves with names, but the belief was that, like some monkeys, the animal's voice was the key ingredient of the call. 已记 看解释
11 Scientists have long sought such a stiff-leafed rice plant, believing that it would raise grain yields. 已记 看解释
 
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