diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 00000000..e130a32e
Binary files /dev/null and b/.DS_Store differ
diff --git a/README.md b/README.md
index a0588a5a..1d3366b6 100644
--- a/README.md
+++ b/README.md
@@ -519,7 +519,8 @@ use_cpu: false
 
 ```bash
 deepspeed --num_gpus 8 src/train_bash.py \
-    --deepspeed ds_config.json \
+    --deepspeed ds_config.json \ 
+        --ddp_timeout 180000000 \ # If the training data is too large, it is recommended to add the ddp_timeout command line option to prevent NCCL errors.
     ... # arguments (same as above)
 ```
 
diff --git a/README_zh.md b/README_zh.md
index 24ba3e12..594dc651 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -519,7 +519,9 @@ use_cpu: false
 ```bash
 deepspeed --num_gpus 8 src/train_bash.py \
     --deepspeed ds_config.json \
+    --ddp_timeout 180000000 \  # 如训练数据过大，建议加上ddp_timeout命令行，防止nccl报错
     ... # 参数同上
+
 ```
 
 <details><summary>使用 DeepSpeed ZeRO-2 进行全参数训练的 ds_config.json 示例</summary>