from :
http://www.oxfordlearnersdictionaries.com/definition/english/jigsaw?q=jigsaw
OAKD: jigsaw
(also jigsaw puzzle) (also puzzle especially in North American English)
a picture printed on cardboard or wood, that has been cut up into a lot of
small pieces of different shapes that you have to fit together again
請問非限定用法中的that子句前面不是不能加上逗號的嗎?
那為何英文解釋中的that子句 前面有加上逗號?
謝謝

that...像是插入句補充說明前述，that指的是picture

辭典裡這種用法超多的，我也好奇為什麼可以加逗點？

http://alt-usage-english.org/excerpts/fxthatvs.htmlhttp://www.ldoceonline.com/dictionary/jigsawhttp://www.dictionary.com/browse/jigsaw-puzzle上述兩字典就沒逗點囉，參考一下

全句太長或許可斟酌加一下以調整節奏

朗文字典解釋中的that是關代當fit受詞，跟牛津字典解釋中第二個that是一樣的用法，無法對比