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1.death rates 死亡率
Both birth and death rates are strikingly different between the two groups of countries.
两类国家的出生率和死亡率显著不同。
2.skin cancer 皮肤癌
People can keep out of the sun to avoid skin cancer.
人们可以通过避免阳光照射来预防皮肤癌。
3.lung cancer 肺癌
He was diagnosed with inoperable lung cancer.
他被诊断患了无法手术的肺癌。
4.depend on 取决于
Needy and handicapped people depend on government relief for their support.
穷人和残疾人依靠政府的救济维持生计。
5.In addition to better treatments, fewer people are getting lung cancer because fewer people are smoking.
In addition to 除了
There's a postage and packing fee in addition to the repair charge.
除修理费之外还有邮寄和包装费。
In addition to my weekly wage, I got a lot of tips.
除了每周的薪水外，我还能得到不少小费。
6.She said new drugs that get the patient's own immune system to fight the cancer could help make the death rate fall even more.
immune system 免疫系统
Yoga can be used to strengthen the immune system.
瑜伽能增强人体免疫系统。
The immune system is our main defence against disease
人体的免疫系统是抵御疾病的主要屏障。
