掐头去尾
break off both ends; quote sth out of context
这部电影～后不到一小时。This film lasts no more than one hour if the beginning and end are cut off.
掐头去尾qiā tóu qù wěi
掐：去掉。去掉前面和后面的部分。比喻去掉无用或多余的部分。leave out the beginning and the end, break off both ends, nip off unwanted parts, do away with unnecessary parts at both ends