英语语法分析

QR

abbr. 昆士兰铁路（Queensland Rail）；快速断路（quick release）；快速反应（quick response）；定量推理（quantitative reasoning）；定性研究（qualitative research）；质量评审（quality review）； 女王条令（Queen's Regulations）；（国际象棋中的）后翼车（queen's rook）

例句

We can pay money by scanning QR codes in many shops.

我们可以在许多商店通过扫描二维码付款。

She asked her students to hand in their homework through a QR code.

她让她的学生通过扫描二维码来提交作业。

Visitors must show their health QR codes and check their temperature before they go into the museum.

参观者在进入博物馆前必须出示健康码并测体温。