diff --git a/one/docs/components/dialog.md b/one/docs/components/dialog.md
index 0adef56..856e6f3 100644
--- a/one/docs/components/dialog.md
+++ b/one/docs/components/dialog.md
@@ -4,6 +4,8 @@
### 尺寸与全屏
+可选的 `ui` 属性值:`s`/`m`/`narrow`/`medium`/`wide`/`auto`。
+
[[ demo src="/demo/dialog/size.vue" ]]
### 模态与非模态
diff --git a/one/docs/demo/dialog/size.vue b/one/docs/demo/dialog/size.vue
index 6d25acc..60c71d4 100644
--- a/one/docs/demo/dialog/size.vue
+++ b/one/docs/demo/dialog/size.vue
@@ -64,3 +64,11 @@ export default {
margin-right: 20px;
}
+
+
+`s`/`m` 用于指定内容的尺寸,会被继承到内部的组件上。而 `narrow`/`medium`/`wide`/`fullscreen`/`auto` 是对话框本身所占区域的大小,可以与 `s`/`m` 混合使用。
+
+
+
+`s`/`m` are used to specify size for internal content and will be inherited by components inside the dialog. While `narrow`/`medium`/`wide`/`fullscreen`/`auto` are used to specify the dimension of the dialog itself, thus can be used together with `s`/`m`.
+
diff --git a/one/docs/en-US/components/dialog.md b/one/docs/en-US/components/dialog.md
index 9a907ec..3e1b9de 100644
--- a/one/docs/en-US/components/dialog.md
+++ b/one/docs/en-US/components/dialog.md
@@ -2,6 +2,12 @@
## Demos
+### Sizes and fullscreen
+
+Available size/dimension variants for the `ui` prop: `s`/`m`/`narrow`/`medium`/`wide`/`auto`.
+
+[[ demo src="/demo/dialog/size.vue" ]]
+
### Modal and non-modal
[[ demo src="/demo/dialog/modal.vue" ]]