diff --git a/config-template.py b/config-template.py
index 5fc5e283..adc92ca5 100644
--- a/config-template.py
+++ b/config-template.py
@@ -55,6 +55,7 @@ response_rules = {
 # 单个api-key的费用警告阈值
 # 当使用此api-key进行请求所消耗的费用估算达到此阈值时，会在控制台输出警告并通知管理员
 # 若之后还有未使用超过此值的api-key，则会切换到新的api-key进行请求
+# 单位：美元
 api_key_fee_threshold = 18.0
 
 # 敏感词过滤开关，以同样数量的*代替敏感词回复
diff --git a/pkg/qqbot/process.py b/pkg/qqbot/process.py
index 025ac556..30351514 100644
--- a/pkg/qqbot/process.py
+++ b/pkg/qqbot/process.py
@@ -117,7 +117,7 @@ def process_message(launcher_type: str, launcher_id: int, text_message: str) ->
 
                         using_key_name = ""
                         for api_key in api_keys:
-                            reply_str += "{}:\n - {}元 {}%\n".format(api_key,
+                            reply_str += "{}:\n - {}美元 {}%\n".format(api_key,
                                                                      round(pkg.openai.manager.get_inst().key_mgr.get_fee(
                                                                          api_keys[api_key]), 6),
                                                                      round(