单词：yes and no
(对问题的一种两可回答)既肯定又否定;既是又不是;既好又不好
yes and no的用法和样例：
例句
- Both were new and radical experiments.两者都是又新又猛的试验。
- El Ninos can be both good and bad, depending on where you are.厄尔尼诺现象既好又坏，关键看你所处的位置。
词汇搭配
- vote by "yes" and "no"口头表决