客人们已经离开
The guests have already left
以上为机器翻译结果，长、整句建议使用 人工翻译 。
当我赶到飞机场时，客人们已经离开了。
When I got to the airport, the guests had left.
youdao
当客人们已经离开的时候。
When the guests have left.
客人们都已经离开了，她开始打扫房间。
The guests having left, she began to clean the room.
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