Let me explain
Ten don'ts. I took a little trip along Machang Lu (马厂路) yesterday and photographed the sign with the ten don'ts which I've posted on (the main) Green Bamboo . The tenth of these says 不说服务忌语 ( bù shuō fúwù jì yǔ ). I wasn't sure what it was meant to mean. I thought it might be some injunction against slander, but it says "Don't say service taboo" which, as far as I can tell, seems to some kind of reference to things you shouldn't say if you work in a service industry. Quite what relevance it has to the sign, I don't know. My thought was that it may just mean, in general, "Be polite when you speak to others" or something like that.