《梦溪笔谈·杂志二》
我出使契丹，到了契丹人从前居住的地界，见到大蓟茇就像车盖一般大，在中原没有这么大的。
余使虏，至古契丹界，大蓟茇如车盖。中国无此大者。
When I was on a diplomatic mission to the Khitan, I arrived at the place where the Khitan people used to live and saw large Artemisia lavandulaefolia like carriage hoods. They are not so large in the Central Plains.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 余使虏，至古契丹界，大蓟茇如车盖。中国无此大者。 [/INST] When I was on a diplomatic mission to the Khitan, I arrived at the place where the Khitan people used to live and saw large Artemisia lavandulaefolia like carriage hoods. They are not so large in the Central Plains.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 余使虏，至古契丹界，大蓟茇如车盖。中国无此大者。
user
When I was on a diplomatic mission to the Khitan, I arrived at the place where the Khitan people used to live and saw large Artemisia lavandulaefolia like carriage hoods. They are not so large in the Central Plains.
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