Correct

疆界

/ jiāngjiè / 
Strokes

Definition

border/boundary

Example

As a Noun

boundary; border

1
Kuòdà
扩大
jiāngjiè
疆界

expand the boundary

2
Huàdìng
划定
jiāngjiè
疆界

delimit/draw a border; designate/establish/fix a boundary