tóu / zī / zhī / qián / yí / dìng / yào / chōng / fèn / liǎo / jiě / shì / chǎng / bú / yào / qīng / yì / mào / fēng / xiǎn

投资之前一定要充分了解市场，不要轻易冒风险。

Before investing, be sure to understand the market fully and do not take risks lightly.