mù qián xíng shì rú hǔ wěi chūn bīng, shāo yǒu bú shèn biàn huì mǎn pán jiē shū. / zhè gè shāng wù jué yì rú hǔ wěi chūn bīng, bù men bì xū jǐn shèn cái zuò.

目前形势如虎尾春冰，稍有不慎便会满盘皆输。

The current situation is extremely dangerous, like stepping on a tiger's tail or spring ice; any carelessness could lead to total failure.