What does その辺でね /"sono hen de ne" means in this context ? (A conversation on airplane between 3 sisters,while they're travelling to Japan)


Context : 3 sisters are traveling to Japan .When the older sister saw her 2
little sisters are arguing with each other, she said this 「 **二人ともその辺でね**
。日本に着く前に疲れてしまうわよ」 I don't understand what does she means exactly here ( can
only guess based on context that she tells her sisters to stop arguing ,but
i'm not sure ) Much thanks if anyone can explain the grammar and correct
meaning here of this sentence




Your understanding is correct.

Strictly speaking, it is the definition #2 from
[here](https://dictionary.goo.ne.jp/word/%E5%85%B6%E3%81%AE%E8%BE%BA/):

> その程度。それくらい。「―でやめたほうがいい」

The [ね](https://dictionary.goo.ne.jp/word/%E3%81%AD/#jn-169590) is an ending
particle for assertion (def #3).

* * *

I'm not sure how idiomatic it is, but "you guys should stop there" may work
also in English.

* * *

[このへん](https://dictionary.goo.ne.jp/word/%E6%AD%A4%E3%81%AE%E8%BE%BA/#jn-81093)
has a similar meaning.

> ２ この程度。「―で打ち切ろう」




Your understanding is correct.

Strictly speaking, it is the definition #2 from
[here](https://dictionary.goo.ne.jp/word/%E5%85%B6%E3%81%AE%E8%BE%BA/):

> その程度。それくらい。「―でやめたほうがいい」

The [ね](https://dictionary.goo.ne.jp/word/%E3%81%AD/#jn-169590) is an ending
particle for assertion (def #3).

* * *

I'm not sure how idiomatic it is, but "you guys should stop there" may work
also in English.

* * *

[このへん](https://dictionary.goo.ne.jp/word/%E6%AD%A4%E3%81%AE%E8%BE%BA/#jn-81093)
has a similar meaning.

> ２ この程度。「―で打ち切ろう」

