Definition
Something that no longer exists or occurs; belonging to a previous era.
逝去的事物
Using traditional black and white televisions is a thing of the past.
使用傳統的黑白電視機已經是過去的事了。
With the prevalence of smartphones, using public phone booths is now a thing of the past.
隨著智能手機的普及，使用公共電話亭現在已經成為過去。
Students used to look for information in libraries, but that is now a thing of the past.
學生們過去常常在圖書館查找信息，但現在這已經成為過去。