It is so cold that you can't go outside ____fully covered in thick clothes.
– How do you learn to live an easy and happy life ?– regarding problems as challenges.
保存药品不能放在________的地方( )
It's ．It's time to play games．
很多物质的名称中含有水，“水”通常有三种含义：①表示水这种物质；②表示水溶液；③表示物质处于液态．下列物质的名称中“水”不属于以上三种含义的是（ ）
