通信

communicate by letter; correspond

♦ 他经常跟我们~。 He often writes to us.

~保密 [军]communication (or traffic) security~兵 signal corps (or unit, troops); signalman~处 mailing address~鸽 homing pigeon; carrier pigeon~连 [军]signal company~联络 [军]signal communication; communications and liaison~犬 messenger dog~枢纽 signal (or communication) centre~卫星 communications satellite; telecommunication satellite~员 messenger; orderly