例句:They visited some factories, hospitals as well as the school.
他们参观了这所学校，还参观了工厂和医院。
2.a proportion of ...比例
例句:In a proportion of patients there was also evidence of a concurrent autoimmune disorder.
在部分病人中还发现了同时发生的自身免疫性疾病。
3.growth rate 增长率
例句:Our average growth rate is lower than the US, India and China.
我们的平均增长率低于美国、印度和中国。
4.going back to 返回；追溯到
例句:I now look forward to going back to work as soon as possible.
我现在渴望尽早回到工作岗位。
