改为：

　　There are many ways for us to learn about the outside world. 或：

　　There are many ways through which we can become acquainted with the outside world。

　　以上托福写作几种情况，在大家有目共睹的情况下诞生了，不知你是否犯过同样低级的托福写作错误呢，为了跟上我们21世纪，我们还是走上高级的人生，避免哪些低级error吧。