They look great, but now they are randomly changing each time a character walks over a tile.

She remembered that Winston Smith's shifts seemed to change randomly.

So its features changed randomly though it benefited from the use of the tourist port for commerce.

The profile will change randomly over the coherence time .

Some online sites offer customers the ability to use a six-digit code which randomly changes every 30-60 seconds on a security token.

Species composition in any community will change randomly with time.

The first clue came from the British, who had noticed that the code's letters did not change randomly.

So as you go through life, I suggest that you randomly change your name from time to time.

The system also changes randomly in discrete steps.

Having won the support of the town's mayor, Master Pain randomly changes his name to Betty.