commonplace既是名词也是形容词，今天我们学习它作形容词表示“平常的” “不足为奇的”用法。我们可以用它来替换 not special，usual，在口语和写作中都很实用。
例句
1、Mobile payment systems are already commonplace across China.
2、Donald Trump’s tweets are prone to spelling errors.
commonplace 的用法，我们还可以学习 “xx has become commonplace.
That means…”这种简单实用表达结构，在雅思托福等考试中可以使用。
翻译
Foreign vacations have become commonplace.
造句
场景：二维码点餐在餐厅已经越来越普遍了
It has become commonplace to scan QR code to order in many restaurants.
注：改用markdown编辑器似乎解决了未存储闪退的问题✌️
