in sexual sense, 1888, as a translation of French faire soixante neuf, literally "to do 69." So called from the similarity of positions to the arrangement of the numerals.
权威例句
1. Twelve hours is the minimum, sixty hours the maximum.
12小时为下限,60小时为上限.
2. He walked two hundred and sixty miles in eight days.
他在8天里走了260英里的路。
3. I'm sixty-two. I feel sixty-two, neither more nor less.
我现在62岁了,感觉自己也确实到这把年纪了。
4. In Rugby League, Australia trounced France by sixty points to four.
在联盟橄榄球赛上,澳大利亚队以60:4的比分大胜法国队。
5. She is still beautiful, and still pulling them in at sixty.