Common people are the greatest and happiness is achieved through hard work.

语音讲解
单词发音
common adj.共同的；普通的；一般的；通常的
greatest adj.最伟大的（great的最高级）；最好的
through prep. 通过；穿过；凭借
连词发音
people are
happiness is achieved
轻读重读
重读：greatest/happiness/hard work
弱读：are the and is

词汇讲解
词链儿1：achieve happiness
获得幸福
achieve: to successfully complete something or get a good result, especially by working hard 实现; 取得; 获得;
搭配：achieve goal/target/good results/grades
She eventually achieved her goal of becoming a professor.
她最终达成了目标，当上了教授。
Lisa achieved(got) very good exam results.
Lisa考试成绩很不错。
请看achieve在美剧《24小时》中的应用：
XX will stop at nothing to achieve his objective.
XX 会不惜一切代价达成他的目标。

gain&attain&obtain 辨析
gain means to get or achieve something that is important, useful or vauable 获得（重要的东西）
This job can help you gain a lot of experience.
这份工作可以为你带来很多工作经验。
attain means to achieve something after trying for a long time （经过努力、长时间后）获得
More women have attained high positions in business.
越来越多的女人在商界做到高位。
obtain means:(formal) to get something 得到
Souvenirs can be obtained at the museum gift shop.
纪念品要去博物馆礼品店买。
词链儿2：through hard work
通过努力的工作
He attained his objective through hard work.
他通过艰苦的工作达到了目标。

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