VOA慢速英语:Obama Permits Military Weapons Sales to Vietnam

短语讲解：

1. And he said each weapons sale will be reviewed before it can take place.

take place 发生，举行
例句：His graduation will never take place if he doesn't get to work.
如果他不下功夫，就永远不会毕业。

2. But he said it is right to end the ban because of an increased level of trust and dialogue between the militaries of the two countries.

because of 因为，由于
例句：John's jacket got out of shape because of the heavy rain.
约翰的夹克因为大雨而变形。