串门: to call on sb, to drop in, to visit sb's home...
接轨: railtrack connection, to integrate into sth, to dock, to connect, to be in step with, to bring into line with, to align...
贺卡: greeting card, congratulation card...
规律: rule (e.g. of science), law of behavior, regular pattern, rhythm, discipline...
三番五次: over and over again (idiom)...
守候: to wait for, to expect, to keep watch, to watch over, to nurse...
深化: to deepen, to intensify...
畅谈: to talk freely, to discuss without inhibition...
做客: to be a guest or visitor...
健身: to exercise, to keep fit, to work out, physical exercise...