He had propped open the slit that dishes passed through into the kitchen with a catsup bottle.

用一只番茄汁瓶子把那个小洞口撑开，这个小洞洞是用来递盆子的。

They originally referred to their product as catsup, but switched to ketchup in the 1880s to stand out.

们最们的产品为catsup（番茄酱），但在 19 世纪 80 年代转向 ketchup（番茄酱）以脱颖而出。

Ketchup and catsup are simply two different spellings for the same thing: a modern, Westernized version of a condiment that European traders were introduced to while visiting the Far East in the late 17th century.

ketchup 和 catsup 是同一事物的两种不同拼写： 17 世纪末欧洲商人在访问远东时被介绍给一种调味品的现代西化版本。