diff --git a/qlib/contrib/strategy/strategy.py b/qlib/contrib/strategy/strategy.py
index 74290b7d6ce..1f4aa7b06fe 100644
--- a/qlib/contrib/strategy/strategy.py
+++ b/qlib/contrib/strategy/strategy.py
@@ -221,9 +221,9 @@ def __init__(
         only_tradable : bool
             will the strategy only consider the tradable stock when buying and selling.
             if only_tradable:
-                strategy will make buy sell decision without checking the tradable state of the stock.
+                the strategy will peek at the information in the short future to avoid untradable stocks (untradable stocks include stocks that meet suspension, or hit limit up or limit down).
             else:
-                strategy will make decision with the tradable state of the stock info and avoid buy and sell them.
+                the strategy will generate orders without peeking any information in the future, so the order generated by the strategies may fail.
         """
         super(TopkDropoutStrategy, self).__init__()
         ListAdjustTimer.__init__(self, kwargs.get("adjust_dates", None))