Where is the W.C. ?; Where can I wash my hand ?; Where can I add some powder ?; Where is the toilet ?; Where is the lavatory ?; Where 's the restroom ?

厕所在哪里？

This authority according to W.C Booth and his student James Phelan is unreliable .

这种叙述权威在叙述学家 W.C.布斯和他的学生詹姆斯·费伦看来是不可靠的。