保持

maintain; keep; preserve; hold; remain; retain; stay; sustain; keep up; persist; poise; maintenance; preservation; retention; conservation; sustenance; maintained; sustained; holding

愉快

enjoy; delight in; take pleasure in; pleasure; delight; joy; enjoyment; cheerfulness; happy; joyful; cheerful; delighted; pleasant; enjoyable; jolly; merry; glad; lighthearted; buoyant; elated; gratifying; heartwarming; blissful; gleeful; jovial; euphoric; exuberant; jocund; convivial; felicitous; gay; carefree; contented; satisfying; sunny; upbeat; happily; joyfully; cheerfully; delightfully; merrily

心情

mood; humour; feelings; spirits; temper; state of mind; frame of mind