境界

state

realm

boundary

bourn

precinct

verge

ambit

frontier

bourne

compass

cumstance

division

境界[jìngjiè]

-（地界）boundary-（情况;程度）extentreached;planeattained;state;realm:
realmofloftythought;崇高的思想境界
idealstate;ideal理想境界
短语境界树boundarytree境界线{图}boundaryline

那位钢琴家所达到的完美境界不过是多年苦练得来的结果。
The perfection to which the pianist had attained was achieved only by years of hard work.