ahead

ad.&a.在前；向前；在先，预先

agr(o)-, agrarian, agree, agree about, agree on, agree to, agree with, agreeable, agreeably, agreed, agreement, agricultural, agriculturally, agriculture, agriculturist, agronomist, agronomy, aground, ah, aha, ahead of, ahead of schedule, ahead of time, ahem, ahoy, AI, aid, aide, aide-de-camp, aide-memoire, AIDS, ail, aileron, ailing, ailment, aim, aim at, aim for, aimless, aimlessly,