跡付ける

(1)follow, discover, or ascertain the course of development of something; "We must follow closely the economic development is Cuba" ; "trace the student's progress"

(2)ある物の進展の経過を追う、発見する、または突き止める

(1)We must follow closely the economic development is Cuba; trace the student's progress

(2)密接に、経済発展がキューバであることにならなければなりません；学生の進歩をたどる