科技与生活常识·英语30篇（1）

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自助结账机如何比人工收银员更快扫描商品

Self-checkout kiosks use high-speed barcode scanners that read codes in under 0.3 seconds.
Weight sensors in the bagging area confirm item count matches scanned entries automatically.
Many systems recognize common produce by shape and color when barcodes are missing or faded.
Customers place items one at a time, and the screen guides them with clear voice prompts.
If an item isn’t scanned properly, the system lights up its location and asks for re-scanning.
Built-in cameras help prevent accidental double-scans by tracking motion near the scanner.
Payment options include contactless cards, mobile wallets, and cash acceptors with real-time validation.
Staff receive alerts only when exceptions occur, like unplanned bag removal before payment.
Regular software updates add new product IDs and improve recognition accuracy over time.
You’ll hear a cheerful chime each time a scan completes successfully and correctly.

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

Built-in cameras help prevent accidental double-scans by tracking motion near the scanner. 内置摄像头通过追踪扫描器附近的动作，防止误扫重复商品。
Self-checkout kiosks use high-speed barcode scanners that read codes in under 0.3 seconds. 自助结账终端采用高速条形码扫描仪，扫描时间不到0.3秒。
Weight sensors in the bagging area confirm item count matches scanned entries automatically. 装袋区的重量传感器自动核对商品数量与已扫描条目是否一致。

这篇中文题目最接近哪一句？自助结账机如何比人工收银员更快扫描商品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？自助结账终端采用高速条形码扫描仪，扫描时间不到0.3秒。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 Self-Checking Grocery Kiosks Scan Items Faster Than Human Cashiers How to cook noodles A maths worksheet

Built-in cameras help prevent accidental double-scans by tracking motion near the scanner.

Built-in cameras help prevent accidental double-scans by tracking motion near the scanner.

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：Built-in cameras help prevent accidental double-scans by tracking motion near the scanner.