闪光词汇及词组：
circulation: n. 流通
swallow: v. 吞下，咽下
pharmaceutical: adj. 制药(学)上的
agent: n. 代理，代理商
victim: n. 受害者
taken pains: 努力
proposition: n. 主张，建议
万能句型：
We can easily deduce that the picture describes the phenomenon of…
As a matter of fact, this phenomenon has become a serious problem in current society.
It can be said with certainty that…
There is no denying that…