diff --git a/scrape_to_sqlite.py b/scrape_to_sqlite.py
index b293fd8..7bc2c75 100755
--- a/scrape_to_sqlite.py
+++ b/scrape_to_sqlite.py
@@ -5,6 +5,7 @@ import time
 import random
 import sqlite3
 import datetime
+import shutil
 import threading
 from selenium import webdriver
 from selenium.webdriver.chrome.service import Service
@@ -35,7 +36,19 @@ def get_driver():
     chrome_options.add_experimental_option("prefs", prefs)
     chrome_options.add_argument("user-agent=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36")
     
-    service = Service(ChromeDriverManager().install())
+    # 优先使用本地 chromedriver：环境变量 CHROMEDRIVER_PATH 或 PATH 中的 chromedriver
+    chromedriver_path = os.environ.get('CHROMEDRIVER_PATH') or shutil.which('chromedriver')
+    if chromedriver_path:
+        try:
+            print(f"Using local chromedriver: {chromedriver_path}")
+            service = Service(chromedriver_path)
+        except Exception as e:
+            print(f"Local chromedriver at {chromedriver_path} failed to start: {e}\nFalling back to webdriver_manager...")
+            service = Service(ChromeDriverManager().install())
+    else:
+        print("Local chromedriver not found; downloading via webdriver_manager...")
+        service = Service(ChromeDriverManager().install())
+
     driver = webdriver.Chrome(service=service, options=chrome_options)
     return driver
 
@@ -80,7 +93,9 @@ def worker(thread_idx, start_id, end_id):
     
     driver = None
     try:
+        print(f"Thread-{thread_idx} initializing webdriver...")
         driver = get_driver()
+        print(f"Thread-{thread_idx} webdriver initialized")
         wait = WebDriverWait(driver, 95) # 稍微增加等待时间
         
         while current_id <= end_id:
@@ -150,7 +165,9 @@ def worker(thread_idx, start_id, end_id):
                 #current_id += 1 
             
     except Exception as e:
+        import traceback
         print(f"Thread-{thread_idx} fatal error: {e}")
+        traceback.print_exc()
     finally:
         if driver:
             driver.quit()