点时，指空间位置上的某一点；表时间时，指在时间上的某一时刻。
年、月、季节时间连用。
，
；表时间时，指在某一天The buzzer went off at eight o’clock.
蜂鸣器在8点钟时响了。
出现的
点、场所、位置、空间）；向；朝；因为；忙于；以（某种价格、速度
）
;参；…有关;[口语] (在某事的最后阶段)在场；参：;性行为有关的意思)The buzzer went off at eight o’clock.
蜂鸣器在8点钟时响了。
An Englishman calls himself young at fifty.
英国人五十岁还说自己年轻。
The two ends buckle at the back.
带子两端在背后扣起来。
Trouble has blown up at the school.
学校里开始出现麻烦。
The road broadens out at this point.
这条马路在这里开始变宽。
He went abroad at his own choice.
他出国是自愿选择的。
We met by accident at the airport.
我们在机场不期而遇。
He stood in amaze at the sight.
他看到那种景象, 惊愕得呆呆站在那里。
Get him on the blower at once!
马上打个电话给他！
There was free booze at the party.
聚会上的酒是免费的。
She was deprived of schooling at ten.
她10岁时就失学了。
I can distinguish them at a distance.
从远处我能认出他们。
He drove the car at dizzy speed.
他以令人头晕的速度开车。
The cliff drops away at that point.
那方悬崖陡峭。
The commandos attacked the outpost at dawn.
突击队员于拂晓时袭击了前哨基。
He was called a crank at first.
一开始他被叫做思想怪异者。
A difficulty has cropped up at work.
工作中突然出现困难。
He darted a dagger at his enemy.
他向敌人投匕首。
She tilted her chin at him defiantly.
她向他翘起下巴表示挑衅。
He arrived there at the eleventh hour.
他刚好到达那里。
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