涨跌

gǔ piào de jià zhí zài mǒu yī tè dìng de shí jiān nèi huì yǒu zhǎng diē

股票的价值在某一特定的时间内会有涨跌。

Over a given period, the value of shares will rise and fall.

bù tóng de gǔ piào huì tóng shí zhǎng diē

不同的股票会同时涨跌。

The different stocks tend to move up and down together.