retain的常用短語：
retain on〔upon,over〕 (v.+prep.)
對…保持… keep (sth such as influence) over (sb or sth)
retain sth on〔over〕 sth
How does an aging politician retain his hold on the loyalty of the voters?一個年邁的政客是怎樣使選民繼續支持他的呢?
retain的用法例句：
1. Daily facial exercises help her to retain the skin's elasticity.
每天做面部運動幫助她保持皮膚彈性。
2. Disney will retain a 51 percent controlling interest in the venture.
迪斯尼將保留該項目51%的控股權。
3. Vegetables should retain some firmness and should not be soggy and waterlogged.
蔬菜應保持一定的硬挺度，不應潮乎乎的浸透了水。
4. He decided to retain him for the trial.
他決定聘請他為出庭律師。
5. He is likely to retain the England captaincy.
他有望繼續擔任英格蘭隊隊長。
6. to retain your independence
保持獨立
7. He has managed to retain most of his fortune.
他設法保存了他的大部分財產.
8. We shall retain our rights.
我們將保留我們的權利.
9. China dishes retain heat longer than metal pans.
瓷器盤子比金屬盤子保溫時間長.
10. Retain copies of all correspondence, since you may need them at a later date.
要保留好所有信件的副本，日后可能會用到。
11. Native people were allowed to retain some sense of their traditional culture and religion.
當地原住民獲準可以保留一些自己的傳統文化和宗教。
12. This season I expect us to retain the championship and win the European Cup.
這個賽季我期待我們能夠保住冠軍頭銜，贏得歐洲杯。
13. How does an aging politician retain his hold on the loyalty of the voters?
一個年邁的政客是怎樣使選民繼續支持他的 呢 ?
14. He drove the idea in somehow, and hoped that his pupils would retain it.
他設法灌輸這一概念而且希望他的學生們記住它.
15. They built a wall round the shore of the lake to retain the water.
他們沿著湖邊筑起一道堤來擋水.