diff --git a/g/frame/gmvc/controller.go b/g/frame/gmvc/controller.go
index dfb2016b6..9913b798b 100644
--- a/g/frame/gmvc/controller.go
+++ b/g/frame/gmvc/controller.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package gmvc provides base object classes for MVC.
+// Package gmvc provides basic object classes for MVC.
 // MVC.
 package gmvc
 
diff --git a/g/os/gcfg/gcfg.go b/g/os/gcfg/gcfg.go
index a7984cbc6..80b1054a9 100644
--- a/g/os/gcfg/gcfg.go
+++ b/g/os/gcfg/gcfg.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package gcfg provides configuration management.
+// Package gcfg provides management for configuration files reading and caching.
 // 配置管理.
 // 配置文件格式支持：json, xml, toml, yaml/yml
 package gcfg
diff --git a/g/os/gfcache/gfcache.go b/g/os/gfcache/gfcache.go
index 2ade244e8..61322ed2e 100644
--- a/g/os/gfcache/gfcache.go
+++ b/g/os/gfcache/gfcache.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package gfcache provides for file reading and caching.
+// Package gfcache provides reading and caching for file contents.
 // 文件缓存.
 package gfcache
 
diff --git a/g/os/gfpool/gfpool.go b/g/os/gfpool/gfpool.go
index fdc159809..1dbdc2725 100644
--- a/g/os/gfpool/gfpool.go
+++ b/g/os/gfpool/gfpool.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package gfpool provides io-reuse pool for file pointer.
+// Package gfpool provides io-reused pool for file pointer.
 // 文件指针池.
 package gfpool
 
diff --git a/g/os/glog/glog.go b/g/os/glog/glog.go
index 076c37703..2865a82b5 100644
--- a/g/os/glog/glog.go
+++ b/g/os/glog/glog.go
@@ -5,7 +5,7 @@
 // You can obtain one at https://gitee.com/johng/gf.
 // @author john, zseeker
 
-// Package glog implements powerful and easy-to-use levelled logging.
+// Package glog implements powerful and easy-to-use levelled logging functionality.
 // 日志模块.
 // 直接文件/输出操作，没有异步逻辑，没有使用缓存或者通道
 package glog
diff --git a/g/os/gproc/gproc.go b/g/os/gproc/gproc.go
index b74390159..4328759e4 100644
--- a/g/os/gproc/gproc.go
+++ b/g/os/gproc/gproc.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package gproc implements processes communication and management.
+// Package gproc implements communication and management of processes.
 // 进程管理/通信.
 // 本进程管理从syscall, os.StartProcess, exec.Cmd都使用过，
 // 最后采用了exec.Cmd来实现多进程管理，这是一个顶层的跨平台封装，兼容性更好，另外两个是偏底层的接口。
diff --git a/g/os/grpool/grpool.go b/g/os/grpool/grpool.go
index 62aa09e00..3673604b1 100644
--- a/g/os/grpool/grpool.go
+++ b/g/os/grpool/grpool.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package grpool implements goroutine pool.
+// Package grpool implements a goroutine reused pool.
 // Goroutine池.
 // 用于goroutine复用，提升异步操作执行效率(避免goroutine限制，并节约内存开销).
 // 需要注意的是，grpool提供给的公共池不提供关闭方法，自创建的池可以手动关闭掉。
diff --git a/g/util/grand/grand.go b/g/util/grand/grand.go
index f14e0fae8..562553e8c 100644
--- a/g/util/grand/grand.go
+++ b/g/util/grand/grand.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package grand provides high performance API for random feature.
+// Package grand provides high performance API for random functionality.
 // 随机数管理.
 package grand
 
diff --git a/g/util/gregex/gregex.go b/g/util/gregex/gregex.go
index 6e5c7d4da..40508b23f 100644
--- a/g/util/gregex/gregex.go
+++ b/g/util/gregex/gregex.go
@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://gitee.com/johng/gf.
 
-// Package gregex provides high performance API for regular expression feature.
+// Package gregex provides high performance API for regular expression functionality.
 // 正则表达式.
 package gregex