全部

1·It has distinctive stages that cycle thru the night, each with different brain activities necessary to maintain good health and have optimal brain performance.

它包括每晚循环的一些特定阶段，每个阶段都有不同的大脑活动，对于维持良好的健康及大脑的最佳表现是必要的。

2·It is loyalty thru good times and bad.

无论在好或坏的时光里，都依然忠诚。

3·San Francisco is a good place to go always. Weather is fine thru the whole year and you can find Chinese culture everywhere.

三藩市是一个好地方，全年气候温和又充满中国文化气色。