telegraph
/ˈtelɪgrɑ:f; ?@ -græf; `tɛləˌɡræf/ n
(a) [U] means of sending messages by the use of electric current along wires 打电报.
(b) [C] apparatus for doing this 电报机. telegraph, v
(a) [I, Ipr, Tn, Tn.pr]
send (a message) by telegraph 打电报传达（消息）; 电告.
(b) [Dn.t] send instructions to (sb) by telegraph 打电报向（某人）发指令、 命令; 电令.