"多少支蜡烛" 的英语表达是 "how many candles"。
这是一个简单的疑问句,"how many" 意为 "多少","candles" 意为 "蜡烛"。
例如:
How many candles do you need for the cake? (你需要多少支蜡烛来装饰蛋糕?)
Can you tell me how many candles are on the cake? (你能告诉我蛋糕上有多少支蜡烛吗?)
"candle" 来自拉丁语 "candela",意思是 "烛光"或 "点燃的蜡烛"。