diff --git a/.env.example b/.env.example
index 4d55f43..bd73c8d 100644
--- a/.env.example
+++ b/.env.example
@@ -6,13 +6,13 @@ OPENAI_CACHE=true
 
 
 # `CACHE_BACKEND`: Options (MEMORY, LMDB, LevelDB)
-CACHE_BACKEND=LevelDB
+CACHE_BACKEND=LMDB
 CACHE_ROOT_PATH_OR_URL=./FLAXKV_DB
 DEFAULT_REQUEST_CACHING_VALUE=false
 
 BENCHMARK_MODE=true
 
-# `FORWARD_CONFIG` 配置转发https://api.openai.com 至/openai路由，转发 https://generativelanguage.googleapis.com至 /gemini接口:
+# `FORWARD_CONFIG` 下面的配置将转发https://api.openai.com 至根路由`/`，转发 https://generativelanguage.googleapis.com至 `/gemini`路由:
 FORWARD_CONFIG=[{"base_url":"https://api.openai.com","route":"/","type":"openai"},{"base_url":"https://generativelanguage.googleapis.com","route":"/gemini","type":"general"}]
 
 
@@ -55,4 +55,4 @@ ITER_CHUNK_TYPE=efficiency
 #ITER_CHUNK_TYPE=one-by-one
 
 # Set timezone
-TZ=Asia/Shanghai
\ No newline at end of file
+TZ=Asia/Shanghai