Simone有没有哪个网站可以和外国人直接聊天的啊，不要乱的那种?
的有关信息介绍如下：
Hi, everyone. I'm not sure whether "allowed" can be used in the blank of the following sentence "I entered a unique world of motions, sounds, sights, and experience which just aren't ____ in the dull environment of an airplane."?
