?
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。

advance guard

英 / ədˌvɑːns ˈɡɑːd /
n. 先遣部队

复数:advance guards

1. The advance guard was pressing forward with all speed.
前卫正以全速向前挺进。
2. Mobile phones, it seems, are the advance guard for mobile-broadband networks that will extend Internet access to the whole of mankind.
手机似乎已在帮助全人类接入移动宽带网络中扮演起了排头兵的角色。
3. This television may be the wide-screen one which is mentioned as being in the Dursley kitchen several years later, in 1995, when the Advance Guard comes for Harry.
厨房里的电视机可能是宽荧的,在几年后,也就是1995年先遣卫队来接哈利时提到过它。
4. Judging from creation, the present age of both countries art circles all displays tradition drawing, west drawing and advance guard art interweave mutually skill current situation.
从创作上看,两国的当代艺术界都呈现出传统绘画、西方绘画与前卫艺术相互交织的艺现状。
5. The advance-guard of the expected procession now appeared in the great gateway, a troop of halberdiers.
期待中的游行行列的前卫出现在大门口,是一队戟兵。