leave at是什么意思？

【leave是及物动词，不与介词at搭配使用】

Remind me to leave at twelve forty-five.
提醒我十二点四十五分走。
-- 英汉 - 辞典例句
Trains leave at hourly intervals.
列车每隔一小时开出一趟.
-- 英汉 - 辞典例句
Buses leave at short intervals.
公共汽车不时地开出。
-- 英汉 - 辞典例句
We agreed to leave at once.
我们同意立即离开。
-- 轻轻松松背单词-蒋刚
Does he mean seriously that we are to leave at 4∶30 in the morning?
他当真要我们早上四点半出发？
-- 英汉 - 辞典例句
We will leave at daybreak.
我们将在黎明时动身。
-- 轻轻松松背单词-蒋刚
The trains leave at hourly intervals.
列车每隔一小时开出一趟。
-- 轻轻松松背单词-蒋刚
He explained that he had to leave at once.
他解释说他必须立即离开。
-- 英汉 - 辞典例句
He took his leave at eight.
他8点钟告辞离去。
-- 英汉 - 辞典例句
They told me to leave at once, or else.
他们要我马上离开,否则(对我不利)。

leave at
将(某人或某物)留在某处；在(某处)离开某人：

例句: I have left my report at the desk.
我已经把报告留在书桌上了。

He left his girl friend at the park.
他和女朋友在公园分手。