in和within的区别和用法in的用法比较广泛，通常应该用within的地方，用in也可以的。 within 用在要强调范围， 如你的例子 they talk openly within the team...
be not in 不在. 例句 For all we know, he may not even be in this country. 说不准，他或许都已不在这个国家了。 In the vast majority of cases, this ...
以c结尾的单词变副词 economic-economically; basic-basically; scientific-scientifically; automatic-automatically; energetic-energetically The des...
