一叶知秋，从这些小细节可以看出整体的变化。

A straw shows which way the wind blows, you can see the overall change from these small details.

一叶知秋，从这件小事可以看出他性格的变化。

A straw shows which way the wind blows, you can see his character change from this small thing.

一叶知秋，从他的言行中可以预见未来的趋势。

A straw shows which way the wind blows, you can predict future trends from his words and actions.

一叶知秋，从市场的反应可以预测经济的走向。

A straw shows which way the wind blows, you can predict the economic trend from the market's reaction.

一叶知秋，从她的态度可以看出她对这件事的看法。

A straw shows which way the wind blows, you can see her opinion on this matter from her attitude.

见一把而知整袋(一叶知秋).

You may know By a handful the whole sack.

有助于您培养盘感, 做到一叶知秋, 先知先觉.

Help you cultivate a sense of disk, so that banner , plan well ahead.