tóu zī zhě / yīng gāi / jǐn shèn / gòu mǎi / lā jī gǔ / yīn wèi / tā men / de / jià gé / bō dòng / hěn dà

投资者应该谨慎购买垃圾股，因为它们的价格波动很大。

Investors should be cautious when buying junk stocks, because their prices fluctuate greatly.