diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 792cd3b..4ec6c2f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: [3.7]
+        python-version: [3.6]
         poetry-version: [1.1.4]
 
     steps:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 9736283..51e878a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -8,13 +8,12 @@ repos:
     - id: trailing-whitespace
 
 -   repo: https://github.com/ambv/black
-    rev: stable
+    rev: 19.10b0
     hooks:
     - id: black
-      language_version: python3.7
 
 -   repo: https://gitlab.com/pycqa/flake8
-    rev: 3.8.2
+    rev: 3.9.0
     hooks:
     - id: flake8
       additional_dependencies:
@@ -25,6 +24,6 @@ repos:
           - 'pydocstyle'
 
 -   repo: https://github.com/terrencepreilly/darglint
-    rev: master
+    rev: v1.4.1
     hooks:
     - id: darglint
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..9575d51
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.6.1
diff --git a/src/cmdict/run_script.py b/src/cmdict/run_script.py
index d75cb67..139d9d6 100644
--- a/src/cmdict/run_script.py
+++ b/src/cmdict/run_script.py
@@ -80,19 +80,27 @@ def download():
 
 @cli.command()
 @click.argument("words", nargs=-1)
-def search(words):
+@click.option(
+    "--german", "-de", is_flag=True, help="Whether it is German word."
+)
+def search(words, german):
     """Type in one English word and echo its Chinese translation.
 
     Args:
         words (str): one English word to be searched. For example,
             "a lot" or "mirror".
+        german (bool): whether it is German word.
     """
-    if _valid_db_exists():
-        db_engine = ECDICTConnector()
-        for i, word in enumerate(words):
-            _echo_item(word, db_engine.query(word))
+    if german:
+        for _, word in enumerate(words):
+            _echo_item_de(word, None)
     else:
-        _echo_warn_download()
+        if _valid_db_exists():
+            db_engine = ECDICTConnector()
+            for _, word in enumerate(words):
+                _echo_item(word, db_engine.query(word))
+        else:
+            _echo_warn_download()
 
 
 @cli.command()
@@ -184,6 +192,26 @@ def _echo_item(word, res):
         )
 
 
+def _echo_item_de(word, res):
+    """Echo a German word search result to cli.
+
+    Args:
+        word (str): The word.
+        res (dict): The word search result.
+    """
+    _echo_divider()
+    if res:
+        click.echo(Fore.CYAN + Style.BRIGHT + res + "\n")
+    else:
+        click.echo(
+            Fore.RED
+            + Style.BRIGHT
+            + word
+            + Style.RESET_ALL
+            + " can not be returned successfully!"
+        )
+
+
 def _valid_db_exists():
     """Return if a valid database is found.
 
diff --git a/tests/cmdict/test_run_script.py b/tests/cmdict/test_run_script.py
index ccec61a..000de65 100644
--- a/tests/cmdict/test_run_script.py
+++ b/tests/cmdict/test_run_script.py
@@ -22,6 +22,10 @@ def test_cli_search():
     """Test cli word search."""
     res = CliRunner().invoke(search, "play")
     assert "theatrical performance of a drama" in res.output
+    res = CliRunner().invoke(search, ["play", "-de"])
+    assert "play can not be returned successfully" in res.output
+    res = CliRunner().invoke(search, ["play", "--german"])
+    assert "play can not be returned successfully" in res.output
 
 
 def test_cli_search_non_exist_word():