?
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。

coupons
CET4

n. 优惠券;息票;[化工]取样片(coupon 的复数)

1. People were very possessive about their coupons.
人们极爱独享优惠券。
2. The booklet contained coupons for drivers, so each time a driver picked somebody, he or she received a coupon.
这个小册子里有司机的优惠券,所以每次司机挑了一个人,他或她就会收到一张优惠券。
3. Kostya received the privileges afforded by athletes: food coupons, a new tracksuit, occasional trips to cities in western Siberia and northern Kazakhstan.
克斯特亚得到了运动员所能获得的特权:食品券,一身新运动服,偶尔还能去西伯利亚西部和哈萨克北部的城市旅游。
4. The sergeant threw the frayed sheaf of football-pool coupons aside and snatched the radio. He saluted smartly, his huge belly juggling like a water gourd.
警官将破损的足球彩票扔到一边,抓起了对话机,他潇洒地敬了个礼,巨大的肚子晃得就像一个水葫芦。
5. They are obsessed with coupons.
他们痴迷于各种优惠券。