this; these; (commonly pronounced zhei4 before a classifier, esp. in Beijing)[cedict]
可用
(n) available; in service[edict]
不
bùㄅㄨˋ
(negative prefix); not; no[cedict]
上
shàngㄕㄤˋ
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]