散发出(蒸气、气味等)，排放的英文

give off

• 散发:    send out; send for ...
• 出:    used as a compleme ...
• 蒸气:    steam; vapour
• 气味:    smell; odour; flav ...
• 等:    class; grade; rank
• 排放:    discharge; blowoff ...