Should the new territories be opened or closed to slavery.

VOA: special.2009.02.26

However, when that gate is opened, the sodium channel is now going to be incredibly selective and only let through sodium ions and no other type of ion.

但是，当闸门打开的时候，钠离子通道,将会有极高的选择性,不允许除钠离子以外的任何其它离子通过。

麻省理工公开课 - 化学原理课程节选

She considers composers like Ellen Zwilich and Libby Larsen to be mentors who opened up possibilities to her.

VOA: special.2010.07.12

In two thousand eight Norway opened a so-called doomsday vault designed to be secure from any threat -- even an asteroid strike.

VOA: special.2010.08.24

The king knew that the young man would be punished, even if he opened the right door.

VOA: special.2009.04.18

He knew that if he opened fire, the United States and South Carolina would be at war.

VOA: special.2009.07.23

But members of the Digital Due Process Coalition say sending an e-mail should be no different from mailing a letter that is protected by law from being opened.

VOA: standard.2010.06.22