科技与生活常识·英语30篇（1）

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智能门铃如何识别熟人面孔——同时保护隐私

Modern smart doorbells use facial recognition to greet known visitors by name.
They compare live camera images with stored profiles of family and trusted guests.
No face data leaves your home unless you choose to back it up securely.
You can turn off recognition anytime without losing motion alerts or two-way talk.
The system learns gradually and never shares your neighbor’s appearance with others.
Even when recognizing someone, it only shows a friendly label like 'Mom' on your phone.
Privacy settings let you delete all face data with one tap in the app.
These devices work offline for basic detection, keeping personal info local.
They alert you instantly if an unrecognized person lingers near your front step.
You decide who gets added—and removed—without needing technical help.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

You decide who gets added—and removed—without needing technical help. 你可自主决定添加或移除人员，无需专业技术支持。
These devices work offline for basic detection, keeping personal info local. 这些设备可在离线状态下实现基础检测，确保个人信息本地处理。
Modern smart doorbells use facial recognition to greet known visitors by name. 现代智能门铃利用人脸识别技术，用姓名向熟识访客打招呼。

这篇中文题目最接近哪一句？智能门铃如何识别熟人面孔——同时保护隐私一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？现代智能门铃利用人脸识别技术，用姓名向熟识访客打招呼。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） How Smart Doorbells Recognize Familiar Faces — And Respect Privacy How to cook noodles A maths worksheet

You decide who gets added—and removed—without needing technical help.

You decide who gets added—and removed—without needing technical help.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：You decide who gets added—and removed—without needing technical help.