to end a phone call
结束电话通话 (jieshu dianhua tonghua)
"He suddenly hung up without saying goodbye."
"他突然挂断电话，没有说再见。" (Ta turan **guaduan dianhua**, mei you shuo zaijian)
to continue making things better or more effective
to keep improving continuously toward a higher standard
to show your confidence or talent clearly despite challenges
to control or suppress something or someone
to relax muscles or body after strain
to remind colleagues politely about something
