実験

(1)to conduct a test or investigation; "We are experimenting with the new drug in order to fight this disease"

(2)テストか調査を行うために

(3)try something new, as in order to gain experience; "Students experiment sexually"; "The composer experimented with a new style"

(4)新しいことに試みる、たとえば経験を積むために

(1)