[po] auto sync bot

zhsj · zhsj · commit 27fa366131ee · 2019-08-08T03:38:13.000+08:00
diff --git a/library/cmath.po b/library/cmath.po
@@ -161,7 +161,8 @@ msgid ""
 "Return the arc cosine of *x*. There are two branch cuts: One extends right "
 "from 1 along the real axis to ∞, continuous from below. The other extends "
 "left from -1 along the real axis to -∞, continuous from above."
-msgstr "返回*x*的反余弦。这里有两个分歧点：一个沿着实轴从1延伸到∞，从下面连续延伸。另外一个沿着实轴从-1延伸到 -∞，从上面连续延伸。"
+msgstr ""
+"返回*x*的反余弦。这里有两个分歧点：一个沿着实轴从1向右延伸到∞，从下面连续延伸。另外一个沿着实轴从-1向左延伸到 -∞，从上面连续延伸。"
 
 #: ../../library/cmath.rst:122
 msgid ""
@@ -175,6 +176,8 @@ msgid ""
 "other extends from ``-1j`` along the imaginary axis to ``-∞j``, continuous "
 "from the left."
 msgstr ""
+"返回*x*的反正切。它具有两个分歧点：一个沿着虚轴从``1j`` "
+"延伸到``∞j``，向右持续延伸。另一个是沿着虚轴从``-1j``延伸到``-∞j``，向左持续延伸。"
 
 #: ../../library/cmath.rst:135
 msgid "Return the cosine of *x*."
@@ -196,7 +199,7 @@ msgstr "双曲函数"
 msgid ""
 "Return the inverse hyperbolic cosine of *x*. There is one branch cut, "
 "extending left from 1 along the real axis to -∞, continuous from above."
-msgstr ""
+msgstr "返回*x*的反双曲余弦。它有一个分歧点沿着实轴从1到 -∞向左延伸，从上方持续延伸。"
 
 #: ../../library/cmath.rst:159
 msgid ""
