From 4c8ce836690a748772de699f3e0bbc056ebd4960 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=B1=E6=99=93=E9=9D=92?=
 <86282370+izhuxiaoqing@users.noreply.github.com>
Date: Wed, 15 Sep 2021 18:01:35 +0800
Subject: [PATCH] Update 4.plan.md

---
 docs-2.0/8.service-tuning/4.plan.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs-2.0/8.service-tuning/4.plan.md b/docs-2.0/8.service-tuning/4.plan.md
index 4f693154a8b..76c9b384c59 100644
--- a/docs-2.0/8.service-tuning/4.plan.md
+++ b/docs-2.0/8.service-tuning/4.plan.md
@@ -1,5 +1,5 @@
 # Execution plan
 
-Nebula Graph {{ nebula.release }} applies rule-based execution plans. Users cannot change execution plans, precompile queries and corresponding plan cache, or accelerate queries by specifying indexes.
+Nebula Graph {{ nebula.release }} applies rule-based execution plans. Users cannot change execution plans, pre-compile queries (and corresponding plan cache), or accelerate queries by specifying indexes.
 
 To view the execution plan and executive summary, see [EXPLAIN and PROFILE](../3.ngql-guide/17.query-tuning-statements/1.explain-and-profile.md).