I ventured the idea that the secret of staying young was to mix with older people.

我大胆地提出这样一个观点，即保持年轻的秘诀是和比自己年长的人交往。

One of the hostess's duties is to mix with her guests as much as possible.

女主人的任务之一就是尽可能与客人交际周旋。

Oil does not mix with water.

油不融于水。

Some of these pills don't mix with drink.

有些药片不能和酒混饮。

Sam used to mix with those people.

萨姆过去常与那些人交往。