centering around; around; focusing in; mainly; primarily; with ~ as the leader; as the primary ~ ; take the lead
There was heavy rain, mostly in and around Tokyo.
Bird flu is spreading rapidly, primarily in Southeast Asia.
This research is progressing, with Prof. Nakajima taking the lead.
I put all the examples along with the meaning into flashcards to study just in case you forget. (I suggest downloading the app version for brainscape) With this you can even study on your phone!
Feel free to use this flash card deck I update regularly.
This grammar is really for intermediate-advanced learners. If you are looking to know where to start in Japanese and building a good foundation check out this blog post it.
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