This clock is a collector's item.
這座鐘是珍藏。
He earned his living as a tax collector.
他以收稅為業。
He became a ticket collector at Waterloo Station.
他在滑鐵盧車站當上了一名檢票員。
Joseph Smith was a voracious book collector.
約瑟夫·史密斯是個如饑似渴的藏書家。
As they guffawed loudly, the ticket collector arrived
他們正哈哈大笑的時候，檢票員到了。