Speeding up virtual memory
入园前，我们就教过她数数、背古诗。相对于数数，她更喜欢背古诗，虽然整首诗能背下来，但总是记不住诗名和作者，有时候还会背混了，不过这都不重要，她能记住就好。
，详情可参考同城约会
Astronaut Jim Lovell, who guided the Apollo 13 mission safely back to Earth in 1970, has died aged 97.
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