贸然

He cannot gamble on offending his boss.

他不敢贸然去得罪老板。

Her marriage to John was a leap in the dark.

她与约翰结婚是贸然行动。

If forms the habit which wants to spit spits, will possibly cause polyphagia, the apositia, will burst sadly oneself, cannot attempt rashly.

如想吐就吐的习惯，很可能会导致贪食、厌食，伤心又伤身，绝不能贸然尝试。