a word, clause, or sentence inserted as an explanation or afterthought into a passage which is grammatically complete without it, in writing usually marked off by brackets, dashes, or commas
插入成分;插入的单词(或句子)。
(一般作
(插入词句用的)圆括号。
an interlude or interval
插曲,间歇
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the three months of coalition government were a lamentable political parenthesis. 三个月的联合政府是一段可悲的政治插曲。
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in parenthesis as a digression or afterthought 作为(离题的)插话;作为事后的想法
"mid 16th cent.: via late Latin from Greek, from