Gǔ / jià / zhǎng / dào / gāo / wèi / hòu / ， / tā / jué / dìng / xiān / jiǎn / cāng / yí / bù / fèn。

股价涨到高位后，他决定先减仓一部分。

After the stock price rose to a high level, he decided to reduce his position first.