A: I am developing a new drug to help prolong life.

　　B: I know a drug already, it is called exercise!

　　prolong

　　vt.延长，拉长，拖延

　　A: You have a very promising career ahead of you.

　　B: And I have you to thank for starting me off.

　　promising

　　a.有希望的，有前途的

　　A: You have a bad cold again.

　　B: Yes, I have been terribly prone to illness this winter.

　　prone

　　a.1.易于 的，很可能 的

　　2.俯卧的

　　A: The window will not stay open.

　　B: Here, prop it up with this stick.

　　prop

　　vt.支撑

　　n.1.支柱，支撑物

　　2.支持者，后盾，靠山

　　prop up

　　支持，资助

　　A: How was the government propaganda disseminated?

　　B: Through the newspapers and the TV.

　　propaganda

　　n.宣传

　　A: Did you grow all of these plants from seed?

　　B: Yes, I propagated them indoors.

　　propagate

　　vt.1.繁殖，增殖

　　2.传播，宣传，使普及

　　vi.繁殖，增殖

　　A: I am developing a new drug to help prolong life.

　　B: I know a drug already, it is called exercise!

　　prolong

　　vt.延长，拉长，拖延

　　A: You have a very promising career ahead of you.

　　B: And I have you to thank for starting me off.

　　promising

　　a.有希望的，有前途的

　　A: You have a bad cold again.

　　B: Yes, I have been terribly prone to illness this winter.

　　prone

　　a.1.易于 的，很可能 的

　　2.俯卧的

　　A: The window will not stay open.

　　B: Here, prop it up with this stick.

　　prop

　　vt.支撑

　　n.1.支柱，支撑物

　　2.支持者，后盾，靠山

　　prop up

　　支持，资助

　　A: How was the government propaganda disseminated?

　　B: Through the newspapers and the TV.

　　propaganda

　　n.宣传

　　A: Did you grow all of these plants from seed?

　　B: Yes, I propagated them indoors.

　　propagate

　　vt.1.繁殖，增殖

　　2.传播，宣传，使普及

　　vi.繁殖，增殖