Synonym of シアン化カリウム (shian-ka kariumu, “potassium cyanide”)

To perform; to do; to conduct oneself; to carry out.

to use / to employ / to make use of, to apply / to spend

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

experiment

to do an experiment

to use one's head

use one thing for many purposes / work someone hard