，指空
位置上的某一点；表
年、月、季节
接壤等；表He undertook to be here at five.
他答应五点钟到这里来。
）；向；朝；因为；忙于；以（某种价格、速度等）
;；…有关;[口语] (在某事的最后阶段)在场；：;性行为有关的意思)He undertook to be here at five.
他答应五点钟到这里来。
I valued the bike at 200 dollars.
我估计这辆自行车值200美元。
She finished typewriting the letter at speed.
她迅速打好那封信。
He let out wildly at the thief.
他猛打那个小偷。
They are usually paid off at weekends.
他们一般在周末领工资。
He seated himself at a writing table.
他在写字台前坐下。
The dog sniffed suspiciously at the stranger.
狗疑惑地嗅着那个陌生人。
Olivia was scraping away at her violin.
奥利维亚正在用她的小提琴不断地拉出刺耳的声音。
We met by accident at the airport.
我们在机场不期而遇。
He went abroad at his own choice.
他出国是自愿选择的。
He stood aghast at the terrible sight.
他被眼前的可怕景象吓呆了。
He stood in amaze at the sight.
他看到那种景象, 惊愕得呆呆地站在那里。
The road broadens out at this point.
这条马路在这里开始变宽。
He beamed with pleasure at seeing her.
看到她， 他眉开眼笑。
There was free booze at the party.
聚会上的酒是免费的。
He kept battering away at the door.
他接连不断地砸门。
He darted a dagger at his enemy.
他向敌人投匕首。
The cliff drops away at that point.
那地
悬崖陡峭。
A difficulty has cropped up at work.
工作中突然出现困难。
The commandos attacked the outpost at dawn.
突击队员于拂晓
袭击了前哨基地。
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