A：John hasn't got married up to now.
约翰迄今为止还未结婚了。
B：Don't you know that he has been carrying a torch for Mary for years?
难道你不知道他这么多年来一直单恋着玛丽吗?
A：Really? Does Mary know that?
真的吗?玛丽知道了吗?
B：Of course not.
当然不知道。
A：How silly John is.
约翰太傻了。
注释:
torch愿意为“火把”，for是“为......而奋斗”，carry a torch for somebody即为某人而奋斗，亦即“爱上某人”，和汉语中的“单相思”意思相近。