procedure;  process;  proceedings;  formalities
 lasting long;  continuation;  keeping at (something);  sticking to (something)
 chain (of);  series (of);  sequence;  suite (e.g. of rooms)
 two adjoining rooms (connected by a sliding door)
 continuously;  continually;  without a break;  next;  then;  after that
 chain (of);  series (of);  sequence;  suite (e.g. of rooms)
 lasting long;  continuation;  keeping at (something);  sticking to (something)
 long spell of rainy weather
 (family) relationship;  connection
 two adjoining rooms (connected by a sliding door)
 serial cartoon;  serial comic;  serial comic strip