1. potential [pəˈtenʃl] 
n. 潜能；可能性；[电] 电势adj. 潜在的；可能的；势的
We are aware of the potential problems and have taken every precaution. 我们意识到了潜在的问题，已经采取了一切防范措施。

2. possible ['pɒsɪb(ə)l] 
adj. 可能的；合理的；合适的n. 可能性；合适的人；可能的事物
Please make your decision as soon as possible. 请尽可能快地出你们的决定。

3. probable ['prɒbəb(ə)l] 
adj. 很可能的；可信的n. 很可能的事；大有希望的候选者
It is probable that the medication will suppress the symptom without treating the condition.
可能该药物只治标而不治本。

4. mass [mæs]
n. 块，团；群众，民众；大量，众多；质量adj. 群众的，民众的；大规模的，集中的 v. 聚集
There's masses of work for her to do. 她有一大堆的工作去做。

5. massive ['mæsɪv] 
adj. 大量的；巨大的，厚重的；魁伟的
During the elections, they have massive propaganda against Iran at that time. 
在选举期间，他们对伊朗进行大规模的负面宣传。

6. rally ['rælɪ] 
vi. 团结；重整；恢复；n. 集会；回复；公路赛车会
About three thousand people held a rally to mark international human rights day.
大约三千人举行集会以纪念国际人权日。

7. compare [kəm'peə] 
v. 比拟，喻为；比较
Managers analyse their company's data and compare it with data on their competitors.
经理们分析他们公司的数据并与其竞争者的数据进行比较。

8. comparable ['kɒmp(ə)rəb(ə)l] 
adj. 可比较的；比得上的
Farmers were supposed to get an income comparable to that of townspeople.
农民应该获得与城镇人相当的收入。

9. comparison [kəm'pærɪs(ə)n] 
n. 比较；对照；比喻；比较关系
Its recommendations are based on detailed comparisons between the public and private sectors.
其建议是以公有和私有部门之间的详细比较为根据的。