When using a roaming service, please note that you will not be able to contact the 999 emergency call centre by dialling 00852 112 and 00852 999.是什么意思_When using a roaming service, please note that you will not be able to contact the 999 emergency call centre by dialling 00852 112 and 00852 999.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句