ad.
1.在(某人或某事物的)前面
2.提前；預(yù)先
3. 占優(yōu)勢；領(lǐng)先 英語解釋

to a more advanced or advantageous position

toward the future; forward in time

to a different or a more advanced time (meaning advanced either toward the present or toward the future)

having the leading position or higher score in a contest

ahead of time; in anticipation

in a forward direction

leading or ahead in a competition

at or in the front

be ahead of 1. 在…前面2. 比…高，比…強3. 占優(yōu)勢，可望取勝4. 賺錢5.（賽跑等）在前；趕過，超過

ahead of 領(lǐng)先于…,在…之前,超過…,提前…

be ahead v.<口>贏錢,賺錢

push ahead 推進,挺進,勇猛前進,奮勇前進

ahead turbine 順車汽輪機，前進汽輪機，推進汽輪機

look ahead to 向前看,展望,考慮

go ahead with 繼續(xù)進行

type ahead 提前鍵入一種終端處理技術(shù)，用這種技術(shù)，使用者可以在軟件正在處理前面鍵入的命令時輸入命令和資料。

press ahead with vt.加緊,決心繼續(xù)

tunnel ahead n. 隧道

ahead ad. 1.在(某人或某事物的)前面 2.提前；預(yù)先 3. 占優(yōu)勢；領(lǐng)先

type ahead 提前打入

ahead of schedule n.計劃表頭

go ahead a.1.前進著的n.1.【俗】前進，進步，放行信號

look ahead 【計】 先行, 超前, 導(dǎo)前, 預(yù)測