开心

happy; joyful; glad; delighted; pleased; elated; cheerful; merry; overjoyed; thrilled; joyous; feel happy; joy; delight; pleasure; amuse; rejoice; make fun of; tickle; happiness; cheerfulness; amusement; mirth; gladness; happily; joyfully; cheerfully; with pleasure; with delight

形容词

adjective; adjectival