out of breath

喘不过气来，上气不接下气

other-directed, other-worldly, others, otherwise, otiose, otter, ottoman, OU, oubliette, ouch, ought, ought to, Ouija, ounce, our, ours, ourselves, oust, out, out of, out of control, out of danger, out of date, out of debt, out of doors, out of favour, out of focus, out of order, out of place, out of power, out of practice, out of proportion, out of question, out of sight, out of step, out of the corner of one's eye, out of the question, out of touch, out of work, out-,