上网可以但必须限时 Surf but must limit
但必须限时
But only for a limited time
以上为机器翻译结果，长、整句建议使用 人工翻译 。
尽管参观者必须在限时之内参观，但排队等待参观的人群有时还是延续了两到三个街区。
The crowds had to be controlled by time-stamped tickets which still resulted in long lines sometime two to three long blocks long.
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