按键

按键	àn jiàn	button or key (on a device) / keystroke / CL:个 / to press a button
按	àn	to press / to push / to leave aside or shelve / to control / to restrain / to keep one's hand on / to check or refer to / according to / in the light of / (of an editor or author) to make a comment
键	jiàn	key (on a piano or computer keyboard) / button (on a mouse or other device) / chemical bond / linchpin