And,these are occurring at a time when the global economic crisis is making it more difficult to maintain good health, especially in the developing world.

VOA: standard.2009.05.18

When you bring a group of your friends back to your house, you're expecting to have a good time, : and your grandparent is there and says, "Oh, it's so good to see a bunch of young people.

当你带着,一群朋友回家，想要狂欢一下，但你的祖父母在家并说，“噢！看到一群年轻人真好。

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