- comstom - traditions
 - to get along - had a good relationship with sb. ex. we get along very well.
 - once in a lifetime (adj.) - only one chance in lifetime.
 - in common -
 - to enjoy each other's company - the fact or condition of being with another or others, especially in a way that provides friendship and enjoyment.
 - as often as -
 - what's more - 更重要的是