发表于同一年的另一项研究中，喝绿茶与血管功能提高和心脏病风险降低相关。
In another study published the same year, drinking green tea was associated with improved blood vessel function and lower heart disease risk.
苦瓜中含有生理活性蛋白质，可以帮助提高免疫功能和预防癌症。
Bitter gourd contains a physiologically active protein that can help improve immune functions and prevent cancer.
电视至多有教育和娱乐功能，但没人指望简单地通过看电视来提高读写水平。
At best, watching television can be educational as well as entertaining, but nobody wishes to raise literacy levels by simply sitting in front of a TV box.
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