You might be a millionaire one day; you can never tell.

谁也吃不准，或许有一天你会成为百万富翁呢。

When will he arrive?-You can never tell.

他什么时候到？--说不准。

You ought never to have any part of the audience behind you. You can never tell what they are going to do.

然而你不可以拥有一部分背对着你的听众，因为这样你永远也不知道他们将要做什么。

You can never tell how far emotions will carry a large market move.

你永远都不可能得知情绪能给一个大的市场带来多大的变动。

You can never tell what small pebble it will pick up and store away among its treasured things.

你永远无法知道它会拣起哪块小石头珍藏起来。

Naturally I felt pleased by what he had to say about Anthony Akinola and I did not hesitate to say, “you can never tell with these writers.

听到他刚刚那番关于Anthony Akinola 的话，我当然很高兴，而且我脱口对他说道：“你可不能这么跟这些作者说。”