To prevent that from happening, American Secretary of State John Hay proposed what became known as the "Open Door" policy.

VOA: special.2010.07.29

Slowly,Ed White moved out the open door.

VOA: special.2009.06.24

When rescuers got the door open, they found the flames had killed the three astronauts.

VOA: special.2009.07.08

But now they decided it would not be wise to re-open the door.

VOA: special.2009.06.24

But how much oftener had she seen him open the other door?

VOA: special.2009.04.18

President Obama says the energy bill will open the door to a clean-energy economy and a better future for America.

VOA: standard.2009.06.27

Mr.Singh,in recent days, has said his government is not yet ready to quantify reduction targets but he has left the door open to that.

VOA: standard.2009.11.08

"SB 1070 will blow the door open to increased racial profiling wrongful arrests and other discrimination against anyone who police reasonably suspect may be undocumented."

VOA: standard.2010.05.08

After the vote,British Ambassador Mark Lyall Grant read a statement on behalf of the group's foreign ministers, which said the door to continued negotiation would remain open.

VOA: standard.2010.06.09