Update c-api/contextvars.po

attach original text to the translation of the term "shallow copy"

Co-authored-by: W. H. Wang <mattwang44@gmail.com>

Author: husohome

c-api/contextvars.po

@@ -121,7 +121,7 @@ msgstr "建立一個新的空的情境物件。 如果發生錯誤，則回傳 `
 msgid ""
 "Create a shallow copy of the passed *ctx* context object. Returns ``NULL`` "
 "if an error has occurred."
-msgstr "建立傳入的 *ctx* 情境物件的淺層複製。如果發生錯誤，則回傳 ``NULL``。"
+msgstr "建立傳入的 *ctx* 情境物件的淺層複製 (shallow copy)。如果發生錯誤，則回傳 ``NULL``。"
 
 #: ../../c-api/contextvars.rst:90
 msgid ""