题目内容：

In summer,it's very hot.People often use an ( )to keep them cool 括号里填什么

优质解答

答案：In summer,it's very hot.People often use an 【air-condition 】to keep them cool . 翻译；在夏天,天气十分炎热.人们经常使用一台空调去保持他们凉爽. 解析；air-condition 开头是发原音字母,所以单数时前...