diff --git a/gdown/__main__.py b/gdown/__main__.py
index e53368e..1220bfc 100644
--- a/gdown/__main__.py
+++ b/gdown/__main__.py
@@ -106,11 +106,8 @@ def main():
         "-c",
         dest="continue_",
         action="store_true",
-        help=(
-            "resume getting partially-downloaded files "
-            "from their download tempfile, "
-            "and skip fully transferred files"
-        ),
+        help="resume getting partially-downloaded files while "
+        "skipping fully downloaded ones",
     )
     parser.add_argument(
         "--folder",
@@ -200,7 +197,7 @@ def main():
         sys.exit(1)
     except requests.exceptions.ProxyError as e:
         print(
-            "Failed to use proxy:\n\n{}\n\n" "Please check your proxy settings.".format(
+            "Failed to use proxy:\n\n{}\n\nPlease check your proxy settings.".format(
                 indent("\n".join(textwrap.wrap(str(e))), prefix="\t")
             ),
             file=sys.stderr,
diff --git a/gdown/download.py b/gdown/download.py
index e57c9eb..cd242f1 100644
--- a/gdown/download.py
+++ b/gdown/download.py
@@ -19,7 +19,6 @@
 from .parse_url import parse_url
 
 CHUNK_SIZE = 512 * 1024  # 512KB
-TEMPFILE_SUFFIX = ".part"
 home = osp.expanduser("~")
 
 
@@ -153,9 +152,7 @@ def download(
     fuzzy: bool
         Fuzzy extraction of Google Drive's file Id. Default is False.
     resume: bool
-        Resume interrupted transfers.
-        Completed output files will be skipped.
-        Partial tempfiles will be reused, if the transfer is incomplete.
+        Resume interrupted downloads while skipping completed ones.
         Default is False.
     format: str, optional
         Format of Google Docs, Spreadsheets and Slides. Default is:
@@ -298,19 +295,14 @@ def download(
         output = osp.join(output, filename_from_url)
 
     if output_is_path:
-
-        # Shortcut any 100% transfers to avoid excessive GETs,
-        # when it's reasonable to assume that gdown would've been
-        # using tempfiles and atomic renames before.
         if resume and os.path.isfile(output):
             if not quiet:
-                print(f"resume: already have {output}")
+                print(f"Skipping already downloaded file {output}", file=sys.stderr)
             return output
 
-        # Alternatively, resume mode can reuse partial tmp_files.
         existing_tmp_files = []
         for file in os.listdir(osp.dirname(output) or "."):
-            if file.startswith(osp.basename(output)) and file.endswith(TEMPFILE_SUFFIX):
+            if file.startswith(osp.basename(output)):
                 existing_tmp_files.append(osp.join(osp.dirname(output), file))
         if resume and existing_tmp_files:
             if len(existing_tmp_files) != 1:
@@ -328,13 +320,12 @@ def download(
                 )
                 return
             tmp_file = existing_tmp_files[0]
-            # Perhaps it should select the biggest one?
         else:
             resume = False
             # mkstemp is preferred, but does not work on Windows
             # https://github.com/wkentaro/gdown/issues/153
             tmp_file = tempfile.mktemp(
-                suffix=TEMPFILE_SUFFIX,
+                suffix=tempfile.template,
                 prefix=osp.basename(output),
                 dir=osp.dirname(output),
             )
diff --git a/gdown/download_folder.py b/gdown/download_folder.py
index 6d9a63a..8c59c96 100644
--- a/gdown/download_folder.py
+++ b/gdown/download_folder.py
@@ -313,13 +313,12 @@ def download_folder(
                 GoogleDriveFileToDownload(id=id, path=path, local_path=local_path)
             )
         else:
-            # Shortcut existing 100% transfers here,
-            # instead of invoking download(),
-            # to avoid making unnecessary requests.
             if resume and os.path.isfile(local_path):
-                # already downloaded this file
                 if not quiet:
-                    print(f"resume: already have {local_path}")
+                    print(
+                        f"Skipping already downloaded file {local_path}",
+                        file=sys.stderr,
+                    )
                 files.append(local_path)
                 continue