1 sentence

1. 这种罕见的药材产于焉地，目前还不得而知。

   zhè zhǒng hǎn​jiàn de yào​cái chǎn yú yān dì, mù​qián hái bù​dé'ér​zhī.

   The origin of this rare medicinal herb is currently unknown.

   Source: Dong Chinese Dictionary