?
查询技巧:
1、输入单个单词准确查询。
2、使用%模糊查询,匹配任意长度字符:
   %a    以a结尾的单词;
   ab%    以ab开头的单词;
   %ac%    含有ac的单词。
3、使用_模糊查询,匹配单个任意字符:
   _a_    三位且a在中间的单词;
   _ad    三位且ad结尾的单词;
   ac_    三位且ac开头的单词;
   _a    两位且a结尾的单词;
   a_    两位且a开头的单词。
4、带连字符-的单词,需含-字符才能模糊查询,如well-know需输入 well-% 。
5、在手机键盘上,如果g上有%和v上有_,则可长按输入。

on or about

左右;约于;于或约于

1. Can you enlighten me as to (or on or about) the new procedure?
你能给我讲讲这新程序吗?
2. Please see to it that the goods are shipped per PEACE sailing on or about October 15th.
请确保货物由十月十五日左右启航的“和平轮”装运。
3. We would be obliged if you could book one economy class seat for him on a flight leaving Guangzhou on or about July 28.
如果你能为他预订1个经济舱的座位,在7月28日当天或者前后几天,飞离广州的话,将不胜感激。
4. On or about January 9th, the people of southern Sudan should have an opportunity to vote in a referendum on whether to break away from the Republic of Sudan and create their own country.
今年1月9日(大概这个时候),苏丹南部的人民应该有机会参加一次民意投票,来决定他们是否要脱离苏丹共和国并组建自己的国家。
5. Abundant information about cooking is available either online or on TV. Young people do less cooking at home than the elderly these days.
网上和电视上都有很多关于烹饪的信息。现在年轻人在家做饭的次数比老一辈少。