Update app.py

app.py

@@ -9,12 +9,14 @@ model_list = [
     "liam168/trans-opus-mt-en-zh"
     ]
 
+
+translation_pipelines = {}
 # init
 for model_name in model_list:
-    pipeline("translation_en_to_zh", model=model_name)
+    translation_pipelines[model_name] = pipeline("translation_en_to_zh", model=model_name)
 
 def translate(text, model_name):
-    pipe = pipeline("translation_en_to_zh", model=model_name)
+    pipe = translation_pipelines[model_name]
     return pipe(text)[0]["translation_text"]
 
 with gr.Blocks() as demo: