mǎi / kōng / mài / kōng / de / xíng / wéi / fēng / xiǎn / hěn / dà / xīn / shǒu / yào / jǐn / shèn

买空卖空的行为风险很大，新手要谨慎。

Speculating in the market is very risky, and beginners should be cautious.