?
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。

allergic reaction

un. 变态反应;过敏性反应;过敏反应;变应反应

1. Nuts can trigger off a violent allergic reaction.
坚果可以引起严重的过敏反应。
2. She suffered a mystery allergic reaction on Saturday.
在周六,她出现了一种神秘的过敏反应。
3. Her father suffered a serious allergic reaction, which stopped his heart.
他的父亲遭受严重过敏反应,致使心跳停止。
4. Many people suffer an allergic reaction to certain sulfites, including those that are commonly added to wine as preservatives.
许多人对某些亚硫酸盐有过敏反应,包括那些通常作为防腐剂添加到葡萄酒中的亚硫酸盐。
5. A schoolgirl saved her father's life by kicking him in the chest after he suffered a serious allergic reaction which stopped his heart.
女学生的父亲突发严重过敏反应,心跳停止了,她在他胸口踢了一脚,把父亲救活了。