用英语来表达某人的英语水平可用如下说法: 很好:Your English is speak very well. 一般:I think your English is so-so. 不好:Oh,if you want to speak English well, you must practice more!
过了6极就英语水平里写CET-6至于你说的定性的描述,可以这么说阿:Precise writen English and fluent oral English.描述过去的经验(接待日本人)的时候,就把这件事情描述出来就好了。不过据我找工作和招聘的惊讶来看,简洁点吧:就写interpretation for foreign guests.