"Blow out birthday candles" 是插生日蜡烛的英文表达。
"Blow out" 意为"吹灭"，"birthday candles" 意为"生日蜡烛"。
来源：这个表达源于西方传统文化中的生日庆祝习俗。在生日蛋糕上插上蜡烛，然后请生日人在全家人的陪伴下，吹灭蜡烛，意味着祝福和祈求。
例句：
Can you help me blow out the birthday candles? (你能帮我吹灭生日蜡烛吗？)
She closed her eyes and made a wish before blowing out the birthday candles. (她闭上眼睛，许愿之前吹灭了生日蜡烛。)
He struggled to blow out all the birthday candles on his cake. (他努力吹灭蛋糕上所有的生日蜡烛。)