科技与生活常识·英语30篇（1）

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扫地机器人如何绘制家居地图而不撞到家具

Robotic vacuums use lidar sensors to scan walls and objects up to ten times per second.
They build a real-time map as they move, updating it each time they clean a new room.
Furniture outlines stay fixed in the map even if you rearrange chairs or lamps later.
You can draw virtual boundaries in the app to keep the robot out of pet bowls or stairs.
Some models remember multiple floor plans, so they switch maps automatically upstairs or downstairs.
Battery level and cleaning progress appear clearly on your phone during every session.
If the robot gets stuck, it sends a gentle notification—not an alarm—to your device.
It pauses briefly before turning corners to avoid knocking over table legs or plant pots.
Cleaning paths adjust smoothly when doors open or rugs shift slightly underfoot.
You can start, pause, or reschedule cleaning with simple voice commands or one tap.

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

Cleaning paths adjust smoothly when doors open or rugs shift slightly underfoot. 开门或地毯轻微移位时，清扫路径会平滑调整。
Battery level and cleaning progress appear clearly on your phone during every session. 每次清洁时，手机上都会清晰显示电量与进度。
Some models remember multiple floor plans, so they switch maps automatically upstairs or downstairs. 部分机型可记忆多张户型图，上下楼时自动切换对应地图。

这篇中文题目最接近哪一句？扫地机器人如何绘制家居地图而不撞到家具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？扫地机器人使用激光雷达传感器，每秒最多扫描墙壁和物体十次。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 Robotic Vacuum Cleaners Map Your Home Without Bumping Into Furniture How to cook noodles A maths worksheet

Cleaning paths adjust smoothly when doors open or rugs shift slightly underfoot.

Cleaning paths adjust smoothly when doors open or rugs shift slightly underfoot.

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：Cleaning paths adjust smoothly when doors open or rugs shift slightly underfoot.