不锈钢发酵罐用途:这道题应该选哪的呢
来源:百度文库 编辑:高考问答 时间:2024/05/16 08:40:21
As my wife and i approached, they ____ adn smiled.
是looked up , 还是looked out好呢
是looked up , 还是looked out好呢
looked up 好
look up 是抬起头 或往上望
look out 是向外望
watch out 是小心
looked up 好
looked up 因为looked out 是小心的意思
我认为look up比较好一点