diff --git a/__test__/Polyline/offset.test.ts b/__test__/Polyline/offset.test.ts
index 24530782f..e0295fae1 100644
--- a/__test__/Polyline/offset.test.ts
+++ b/__test__/Polyline/offset.test.ts
@@ -504,6 +504,7 @@ describe("补圆弧测试", () =>
         {
             expect(cus[0].GetOffsetCurves(-i).length).toBe(1);
         }
+        //需要删除一个无效的线段 ref #IKO6L
         expect(cus[0].GetOffsetCurves(27.3).length).toBe(1);
     })
     test("补圆弧测试3", () =>