Tóng xīn
Tongxin county in Wuzhong 吳忠|吴忠[Wu2 zhong1], Ningxia
Tóng xīn xiàn
Tongxin county in Wuzhong 吳忠|吴忠[Wu2 zhong1], Ningxia
tōng xìn
to correspond (by letter etc)
to communicate
communication
tóng xīn
with common wishes
spirit of cooperation
concentric
tóng xīn
childish heart
childish innocence