很多人都是在博览会或交易会上第一次见到电话、打字机、X光，甚至冰激淋蛋卷。

Many people got their first look at the telephone, typewriter, X-ray and even the ice cream cone at an expo or fair.

youdao

很多人都是在博览会或交易会上第一次见到电话、打字机、X光，甚至冰激淋蛋卷。

Many people got their first look at the telephone, typewriter, X-ray and even the ice cream cone at an expo or fair.

youdao