diff --git a/po/zh-Hans.po b/po/zh-Hans.po
index 3f33c313..c7cb9bc9 100644
--- a/po/zh-Hans.po
+++ b/po/zh-Hans.po
@@ -132,7 +132,7 @@ msgstr ""
 #: src/SUMMARY.md:148 src/SUMMARY.md:177 src/SUMMARY.md:204 src/SUMMARY.md:225
 #: src/SUMMARY.md:251 src/SUMMARY.md:273 src/SUMMARY.md:293
 msgid "Exercises"
-msgstr ""
+msgstr "习题"
 
 #: src/SUMMARY.md:38
 msgid "Implicit Conversions"
@@ -3038,11 +3038,11 @@ msgstr ""
 
 #: src/exercises/day-1/morning.md:1
 msgid "# Day 1: Morning Exercises"
-msgstr ""
+msgstr "# 第一天上午习题"
 
 #: src/exercises/day-1/morning.md:3
 msgid "In these exercises, we will explore two parts of Rust:"
-msgstr ""
+msgstr "在这些习题中，我们将探索 Rust 的两个部分："
 
 #: src/exercises/day-1/morning.md:5
 msgid ""
@@ -3050,10 +3050,13 @@ msgid ""
 "\n"
 "* Arrays and `for` loops."
 msgstr ""
+"* 类型之间的隐式转换。\n"
+"\n"
+"* 数组和 `for` 循环。"
 
 #: src/exercises/day-1/morning.md:11
 msgid "A few things to consider while solving the exercises:"
-msgstr ""
+msgstr "在解题时要考虑几件事："
 
 #: src/exercises/day-1/morning.md:13
 msgid ""
@@ -3064,6 +3067,9 @@ msgid ""
 "\n"
 "* Alternatively, use the Rust Playground."
 msgstr ""
+"* 最好使用本地安装的 Rust，以实现在编辑器中自动补全。关于安装 Rust 的细节，请参见 [使用 Cargo] 页面。\n"
+"\n"
+"* 也可以使用 Rust Playground 作为替代。"
 
 #: src/exercises/day-1/morning.md:19
 msgid ""
@@ -3071,6 +3077,7 @@ msgid ""
 "lose\n"
 "their state if you navigate away from the page."
 msgstr ""
+"页面内嵌的代码片段是不可编辑的：因为离开页面后内嵌代码片段中的修改会丢失。"
 
 #: src/exercises/day-1/morning.md:22 src/exercises/day-1/afternoon.md:11
 #: src/exercises/day-2/morning.md:11 src/exercises/day-2/afternoon.md:7
@@ -3081,6 +3088,7 @@ msgstr ""
 msgid ""
 "After looking at the exercises, you can look at the [solutions] provided."
 msgstr ""
+"读完习题后，可以阅读本书提供的 [题解]。"
 
 #: src/exercises/day-1/implicit-conversions.md:1
 msgid "# Implicit Conversions"