女服务员赶紧去找零钱，但当女服务员回来时，老太太已经不见了。
The waitress quickly went to get change, but the old lady was gone when the waitress came back.
过了一段时间，服务员回来了，但他并没有带来牛奶。
The waiter was back again some time later, but he brought no milk.
服务员拿着他们点的东西回来，接着格雷厄姆签了单。
The waiter returned with their order and Graham signed the bill.
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