打字猴:1.704950436e+09
1704950436
1704950437 She had to hold onto the edge of the table.她得抓住桌子边。
1704950438
1704950439 He held on to the rope.他紧紧抓住绳子。
1704950440
1704950441 张道真英语用法(大众珍藏版·第二版) [:1704917677]
1704950442 661 once (adv. & conj.)
1704950443
1704950444 once可用作副词,表示“一次”:
1704950445
1704950446 Once a week she went out shopping.她一周出去买一次东西。
1704950447
1704950448 I see them once every two months.我两个月见他们一次。
1704950449
1704950450 Once or twice he had seen them come to blows.有一两次他看见他们打了起来。
1704950451
1704950452 还可表示“过去(有一次)”、“曾一度”:
1704950453
1704950454 Once dinosaurs walked on these plains.过去恐龙曾一度在这些平原上活动。
1704950455
1704950456 He once knew her, but they are no longer friends.他过去认识她,但现在不再是朋友了。
1704950457
1704950458 Once in the night I woke and heard the wind blowing.有一次夜里我醒来听见风在刮。
1704950459
1704950460 once upon a time常用来开始一个故事:
1704950461
1704950462 Once upon a time a highwayman lived in this house.从前有一个强盗住在这间屋子里。
1704950463
1704950464 at once可表示“立即”:
1704950465
1704950466 You must come home to him at once.你必须立即回家,回到他身边。
1704950467
1704950468 I knew at once that something was wrong.我立即知道出了问题。
1704950469
1704950470 all at once可表示“突然”,也可表示“同时(一道)”:
1704950471
1704950472 All at once, I remembered.突然我记起来了。
1704950473
1704950474 Don’t all speak at once!大家不要同时讲话!
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1704950476 once还可用作连词,表示“一(旦)……就”:
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1704950478 Once you began you couldn’t stop.你一旦开始就停不下来了。
1704950479
1704950480 Once you have learned Spanish you will find Italian easy.你一旦学了西班牙语,就会发现意大利语不难了。
1704950481
1704950482 Once you’ve finished, go to bed.你一干完就睡觉。
1704950483
1704950484 张道真英语用法(大众珍藏版·第二版) [:1704917678]
1704950485 662 one
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