World leaders agreed this week to protect all nuclear materials within four years to stop the possibility of nuclear terrorism.

VOA: special.2010.04.17

What he meant was they were the charges put in the world for slaveholders to care for, and if possible, even to protect and perfect.

他的意思就是,奴隶是世界留给奴隶主来管理的财产,如果可能的话,还应保护和完善他们

耶鲁公开课 - 美国内战与重建课程节选

However efforts to protect the area are continuing so people that from all over the world may continue visiting this biological treasure.

VOA: special.2009.06.30

The use of fluoride to protect teeth is common in many parts of the world.

VOA: special.2009.03.11

They said colonies halfway around the world would be costly to protect.

VOA: special.2010.07.22

Agriculture officials Remove DDT," around the world race to protect wheat crops against a major new threat.

VOA: standard.2009.09.16

Jean-Michel Cousteau is working to ensure that his father's legacy will inspire more people around the world to learn about our oceans, seas and rivers, care about them and protect them.

VOA: standard.2010.06.18