Christmas trees alone are involved in about 300 fires annually, the CPSC says, resulting in 10 deaths, 30 injuries and an average of about $10 million in property damage and loss.是什么意思_Christmas trees alone are involved in about 300 fires annually, the CPSC says, resulting in 10 deaths, 30 injuries and an average of about $10 million in property damage and loss.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句